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If the window is resized it was possible that xpos pointed outside the visualization texture. By rearranging the overflow check we make sure this (and a crash) does not happen. We also don't have to use xleft for start position, as that is 0 anyways, and if we ever want to take into account xleft then the texture should be positioned accordingly when rendering. Signed-off-by: Marton Balint <cus@passwd.hu>
| /* | |
| * Copyright (c) 2003 Fabrice Bellard | |
| * | |
| * This file is part of FFmpeg. | |
| * | |
| * FFmpeg is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU Lesser General Public | |
| * License as published by the Free Software Foundation; either | |
| * version 2.1 of the License, or (at your option) any later version. | |
| * | |
| * FFmpeg is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * Lesser General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU Lesser General Public | |
| * License along with FFmpeg; if not, write to the Free Software | |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| */ | |
| /** | |
| * @file | |
| * simple media player based on the FFmpeg libraries | |
| */ | |
| #include "config.h" | |
| #include <inttypes.h> | |
| #include <math.h> | |
| #include <limits.h> | |
| #include <signal.h> | |
| #include <stdint.h> | |
| #include "libavutil/avstring.h" | |
| #include "libavutil/eval.h" | |
| #include "libavutil/mathematics.h" | |
| #include "libavutil/pixdesc.h" | |
| #include "libavutil/imgutils.h" | |
| #include "libavutil/dict.h" | |
| #include "libavutil/fifo.h" | |
| #include "libavutil/parseutils.h" | |
| #include "libavutil/samplefmt.h" | |
| #include "libavutil/avassert.h" | |
| #include "libavutil/time.h" | |
| #include "libavutil/bprint.h" | |
| #include "libavformat/avformat.h" | |
| #include "libavdevice/avdevice.h" | |
| #include "libswscale/swscale.h" | |
| #include "libavutil/opt.h" | |
| #include "libavcodec/avfft.h" | |
| #include "libswresample/swresample.h" | |
| #if CONFIG_AVFILTER | |
| # include "libavfilter/avfilter.h" | |
| # include "libavfilter/buffersink.h" | |
| # include "libavfilter/buffersrc.h" | |
| #endif | |
| #include <SDL.h> | |
| #include <SDL_thread.h> | |
| #include "cmdutils.h" | |
| #include <assert.h> | |
| const char program_name[] = "ffplay"; | |
| const int program_birth_year = 2003; | |
| #define MAX_QUEUE_SIZE (15 * 1024 * 1024) | |
| #define MIN_FRAMES 25 | |
| #define EXTERNAL_CLOCK_MIN_FRAMES 2 | |
| #define EXTERNAL_CLOCK_MAX_FRAMES 10 | |
| /* Minimum SDL audio buffer size, in samples. */ | |
| #define SDL_AUDIO_MIN_BUFFER_SIZE 512 | |
| /* Calculate actual buffer size keeping in mind not cause too frequent audio callbacks */ | |
| #define SDL_AUDIO_MAX_CALLBACKS_PER_SEC 30 | |
| /* Step size for volume control in dB */ | |
| #define SDL_VOLUME_STEP (0.75) | |
| /* no AV sync correction is done if below the minimum AV sync threshold */ | |
| #define AV_SYNC_THRESHOLD_MIN 0.04 | |
| /* AV sync correction is done if above the maximum AV sync threshold */ | |
| #define AV_SYNC_THRESHOLD_MAX 0.1 | |
| /* If a frame duration is longer than this, it will not be duplicated to compensate AV sync */ | |
| #define AV_SYNC_FRAMEDUP_THRESHOLD 0.1 | |
| /* no AV correction is done if too big error */ | |
| #define AV_NOSYNC_THRESHOLD 10.0 | |
| /* maximum audio speed change to get correct sync */ | |
| #define SAMPLE_CORRECTION_PERCENT_MAX 10 | |
| /* external clock speed adjustment constants for realtime sources based on buffer fullness */ | |
| #define EXTERNAL_CLOCK_SPEED_MIN 0.900 | |
| #define EXTERNAL_CLOCK_SPEED_MAX 1.010 | |
| #define EXTERNAL_CLOCK_SPEED_STEP 0.001 | |
| /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */ | |
| #define AUDIO_DIFF_AVG_NB 20 | |
| /* polls for possible required screen refresh at least this often, should be less than 1/fps */ | |
| #define REFRESH_RATE 0.01 | |
| /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */ | |
| /* TODO: We assume that a decoded and resampled frame fits into this buffer */ | |
| #define SAMPLE_ARRAY_SIZE (8 * 65536) | |
| #define CURSOR_HIDE_DELAY 1000000 | |
| #define USE_ONEPASS_SUBTITLE_RENDER 1 | |
| static unsigned sws_flags = SWS_BICUBIC; | |
| typedef struct MyAVPacketList { | |
| AVPacket *pkt; | |
| int serial; | |
| } MyAVPacketList; | |
| typedef struct PacketQueue { | |
| AVFifoBuffer *pkt_list; | |
| int nb_packets; | |
| int size; | |
| int64_t duration; | |
| int abort_request; | |
| int serial; | |
| SDL_mutex *mutex; | |
| SDL_cond *cond; | |
| } PacketQueue; | |
| #define VIDEO_PICTURE_QUEUE_SIZE 3 | |
| #define SUBPICTURE_QUEUE_SIZE 16 | |
| #define SAMPLE_QUEUE_SIZE 9 | |
| #define FRAME_QUEUE_SIZE FFMAX(SAMPLE_QUEUE_SIZE, FFMAX(VIDEO_PICTURE_QUEUE_SIZE, SUBPICTURE_QUEUE_SIZE)) | |
| typedef struct AudioParams { | |
| int freq; | |
| int channels; | |
| int64_t channel_layout; | |
| enum AVSampleFormat fmt; | |
| int frame_size; | |
| int bytes_per_sec; | |
| } AudioParams; | |
| typedef struct Clock { | |
| double pts; /* clock base */ | |
| double pts_drift; /* clock base minus time at which we updated the clock */ | |
| double last_updated; | |
| double speed; | |
| int serial; /* clock is based on a packet with this serial */ | |
| int paused; | |
| int *queue_serial; /* pointer to the current packet queue serial, used for obsolete clock detection */ | |
| } Clock; | |
| /* Common struct for handling all types of decoded data and allocated render buffers. */ | |
| typedef struct Frame { | |
| AVFrame *frame; | |
| AVSubtitle sub; | |
| int serial; | |
| double pts; /* presentation timestamp for the frame */ | |
| double duration; /* estimated duration of the frame */ | |
| int64_t pos; /* byte position of the frame in the input file */ | |
| int width; | |
| int height; | |
| int format; | |
| AVRational sar; | |
| int uploaded; | |
| int flip_v; | |
| } Frame; | |
| typedef struct FrameQueue { | |
| Frame queue[FRAME_QUEUE_SIZE]; | |
| int rindex; | |
| int windex; | |
| int size; | |
| int max_size; | |
| int keep_last; | |
| int rindex_shown; | |
| SDL_mutex *mutex; | |
| SDL_cond *cond; | |
| PacketQueue *pktq; | |
| } FrameQueue; | |
| enum { | |
| AV_SYNC_AUDIO_MASTER, /* default choice */ | |
| AV_SYNC_VIDEO_MASTER, | |
| AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */ | |
| }; | |
| typedef struct Decoder { | |
| AVPacket *pkt; | |
| PacketQueue *queue; | |
| AVCodecContext *avctx; | |
| int pkt_serial; | |
| int finished; | |
| int packet_pending; | |
| SDL_cond *empty_queue_cond; | |
| int64_t start_pts; | |
| AVRational start_pts_tb; | |
| int64_t next_pts; | |
| AVRational next_pts_tb; | |
| SDL_Thread *decoder_tid; | |
| } Decoder; | |
| typedef struct VideoState { | |
| SDL_Thread *read_tid; | |
| AVInputFormat *iformat; | |
| int abort_request; | |
| int force_refresh; | |
| int paused; | |
| int last_paused; | |
| int queue_attachments_req; | |
| int seek_req; | |
| int seek_flags; | |
| int64_t seek_pos; | |
| int64_t seek_rel; | |
| int read_pause_return; | |
| AVFormatContext *ic; | |
| int realtime; | |
| Clock audclk; | |
| Clock vidclk; | |
| Clock extclk; | |
| FrameQueue pictq; | |
| FrameQueue subpq; | |
| FrameQueue sampq; | |
| Decoder auddec; | |
| Decoder viddec; | |
| Decoder subdec; | |
| int audio_stream; | |
| int av_sync_type; | |
| double audio_clock; | |
| int audio_clock_serial; | |
| double audio_diff_cum; /* used for AV difference average computation */ | |
| double audio_diff_avg_coef; | |
| double audio_diff_threshold; | |
| int audio_diff_avg_count; | |
| AVStream *audio_st; | |
| PacketQueue audioq; | |
| int audio_hw_buf_size; | |
| uint8_t *audio_buf; | |
| uint8_t *audio_buf1; | |
| unsigned int audio_buf_size; /* in bytes */ | |
| unsigned int audio_buf1_size; | |
| int audio_buf_index; /* in bytes */ | |
| int audio_write_buf_size; | |
| int audio_volume; | |
| int muted; | |
| struct AudioParams audio_src; | |
| #if CONFIG_AVFILTER | |
| struct AudioParams audio_filter_src; | |
| #endif | |
| struct AudioParams audio_tgt; | |
| struct SwrContext *swr_ctx; | |
| int frame_drops_early; | |
| int frame_drops_late; | |
| enum ShowMode { | |
| SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB | |
| } show_mode; | |
| int16_t sample_array[SAMPLE_ARRAY_SIZE]; | |
| int sample_array_index; | |
| int last_i_start; | |
| RDFTContext *rdft; | |
| int rdft_bits; | |
| FFTSample *rdft_data; | |
| int xpos; | |
| double last_vis_time; | |
| SDL_Texture *vis_texture; | |
| SDL_Texture *sub_texture; | |
| SDL_Texture *vid_texture; | |
| int subtitle_stream; | |
| AVStream *subtitle_st; | |
| PacketQueue subtitleq; | |
| double frame_timer; | |
| double frame_last_returned_time; | |
| double frame_last_filter_delay; | |
| int video_stream; | |
| AVStream *video_st; | |
| PacketQueue videoq; | |
| double max_frame_duration; // maximum duration of a frame - above this, we consider the jump a timestamp discontinuity | |
| struct SwsContext *img_convert_ctx; | |
| struct SwsContext *sub_convert_ctx; | |
| int eof; | |
| char *filename; | |
| int width, height, xleft, ytop; | |
| int step; | |
| #if CONFIG_AVFILTER | |
| int vfilter_idx; | |
| AVFilterContext *in_video_filter; // the first filter in the video chain | |
| AVFilterContext *out_video_filter; // the last filter in the video chain | |
| AVFilterContext *in_audio_filter; // the first filter in the audio chain | |
| AVFilterContext *out_audio_filter; // the last filter in the audio chain | |
| AVFilterGraph *agraph; // audio filter graph | |
| #endif | |
| int last_video_stream, last_audio_stream, last_subtitle_stream; | |
| SDL_cond *continue_read_thread; | |
| } VideoState; | |
| /* options specified by the user */ | |
| static AVInputFormat *file_iformat; | |
| static const char *input_filename; | |
| static const char *window_title; | |
| static int default_width = 640; | |
| static int default_height = 480; | |
| static int screen_width = 0; | |
| static int screen_height = 0; | |
| static int screen_left = SDL_WINDOWPOS_CENTERED; | |
| static int screen_top = SDL_WINDOWPOS_CENTERED; | |
| static int audio_disable; | |
| static int video_disable; | |
| static int subtitle_disable; | |
| static const char* wanted_stream_spec[AVMEDIA_TYPE_NB] = {0}; | |
| static int seek_by_bytes = -1; | |
| static float seek_interval = 10; | |
| static int display_disable; | |
| static int borderless; | |
| static int alwaysontop; | |
| static int startup_volume = 100; | |
| static int show_status = -1; | |
| static int av_sync_type = AV_SYNC_AUDIO_MASTER; | |
| static int64_t start_time = AV_NOPTS_VALUE; | |
| static int64_t duration = AV_NOPTS_VALUE; | |
| static int fast = 0; | |
| static int genpts = 0; | |
| static int lowres = 0; | |
| static int decoder_reorder_pts = -1; | |
| static int autoexit; | |
| static int exit_on_keydown; | |
| static int exit_on_mousedown; | |
| static int loop = 1; | |
| static int framedrop = -1; | |
| static int infinite_buffer = -1; | |
| static enum ShowMode show_mode = SHOW_MODE_NONE; | |
| static const char *audio_codec_name; | |
| static const char *subtitle_codec_name; | |
| static const char *video_codec_name; | |
| double rdftspeed = 0.02; | |
| static int64_t cursor_last_shown; | |
| static int cursor_hidden = 0; | |
| #if CONFIG_AVFILTER | |
| static const char **vfilters_list = NULL; | |
| static int nb_vfilters = 0; | |
| static char *afilters = NULL; | |
| #endif | |
| static int autorotate = 1; | |
| static int find_stream_info = 1; | |
| static int filter_nbthreads = 0; | |
| /* current context */ | |
| static int is_full_screen; | |
| static int64_t audio_callback_time; | |
| #define FF_QUIT_EVENT (SDL_USEREVENT + 2) | |
| static SDL_Window *window; | |
| static SDL_Renderer *renderer; | |
| static SDL_RendererInfo renderer_info = {0}; | |
| static SDL_AudioDeviceID audio_dev; | |
| static const struct TextureFormatEntry { | |
| enum AVPixelFormat format; | |
| int texture_fmt; | |
| } sdl_texture_format_map[] = { | |
| { AV_PIX_FMT_RGB8, SDL_PIXELFORMAT_RGB332 }, | |
| { AV_PIX_FMT_RGB444, SDL_PIXELFORMAT_RGB444 }, | |
| { AV_PIX_FMT_RGB555, SDL_PIXELFORMAT_RGB555 }, | |
| { AV_PIX_FMT_BGR555, SDL_PIXELFORMAT_BGR555 }, | |
| { AV_PIX_FMT_RGB565, SDL_PIXELFORMAT_RGB565 }, | |
| { AV_PIX_FMT_BGR565, SDL_PIXELFORMAT_BGR565 }, | |
| { AV_PIX_FMT_RGB24, SDL_PIXELFORMAT_RGB24 }, | |
| { AV_PIX_FMT_BGR24, SDL_PIXELFORMAT_BGR24 }, | |
| { AV_PIX_FMT_0RGB32, SDL_PIXELFORMAT_RGB888 }, | |
| { AV_PIX_FMT_0BGR32, SDL_PIXELFORMAT_BGR888 }, | |
| { AV_PIX_FMT_NE(RGB0, 0BGR), SDL_PIXELFORMAT_RGBX8888 }, | |
| { AV_PIX_FMT_NE(BGR0, 0RGB), SDL_PIXELFORMAT_BGRX8888 }, | |
| { AV_PIX_FMT_RGB32, SDL_PIXELFORMAT_ARGB8888 }, | |
| { AV_PIX_FMT_RGB32_1, SDL_PIXELFORMAT_RGBA8888 }, | |
| { AV_PIX_FMT_BGR32, SDL_PIXELFORMAT_ABGR8888 }, | |
| { AV_PIX_FMT_BGR32_1, SDL_PIXELFORMAT_BGRA8888 }, | |
| { AV_PIX_FMT_YUV420P, SDL_PIXELFORMAT_IYUV }, | |
| { AV_PIX_FMT_YUYV422, SDL_PIXELFORMAT_YUY2 }, | |
| { AV_PIX_FMT_UYVY422, SDL_PIXELFORMAT_UYVY }, | |
| { AV_PIX_FMT_NONE, SDL_PIXELFORMAT_UNKNOWN }, | |
| }; | |
| #if CONFIG_AVFILTER | |
| static int opt_add_vfilter(void *optctx, const char *opt, const char *arg) | |
| { | |
| GROW_ARRAY(vfilters_list, nb_vfilters); | |
| vfilters_list[nb_vfilters - 1] = arg; | |
| return 0; | |
| } | |
| #endif | |
| static inline | |
| int cmp_audio_fmts(enum AVSampleFormat fmt1, int64_t channel_count1, | |
| enum AVSampleFormat fmt2, int64_t channel_count2) | |
| { | |
| /* If channel count == 1, planar and non-planar formats are the same */ | |
| if (channel_count1 == 1 && channel_count2 == 1) | |
| return av_get_packed_sample_fmt(fmt1) != av_get_packed_sample_fmt(fmt2); | |
| else | |
| return channel_count1 != channel_count2 || fmt1 != fmt2; | |
| } | |
| static inline | |
| int64_t get_valid_channel_layout(int64_t channel_layout, int channels) | |
| { | |
| if (channel_layout && av_get_channel_layout_nb_channels(channel_layout) == channels) | |
| return channel_layout; | |
| else | |
| return 0; | |
| } | |
| static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt) | |
| { | |
| MyAVPacketList pkt1; | |
| if (q->abort_request) | |
| return -1; | |
| if (av_fifo_space(q->pkt_list) < sizeof(pkt1)) { | |
| if (av_fifo_grow(q->pkt_list, sizeof(pkt1)) < 0) | |
| return -1; | |
| } | |
| pkt1.pkt = pkt; | |
| pkt1.serial = q->serial; | |
| av_fifo_generic_write(q->pkt_list, &pkt1, sizeof(pkt1), NULL); | |
| q->nb_packets++; | |
| q->size += pkt1.pkt->size + sizeof(pkt1); | |
| q->duration += pkt1.pkt->duration; | |
| /* XXX: should duplicate packet data in DV case */ | |
| SDL_CondSignal(q->cond); | |
| return 0; | |
| } | |
| static int packet_queue_put(PacketQueue *q, AVPacket *pkt) | |
| { | |
| AVPacket *pkt1; | |
| int ret; | |
| pkt1 = av_packet_alloc(); | |
| if (!pkt1) { | |
| av_packet_unref(pkt); | |
| return -1; | |
| } | |
| av_packet_move_ref(pkt1, pkt); | |
| SDL_LockMutex(q->mutex); | |
| ret = packet_queue_put_private(q, pkt1); | |
| SDL_UnlockMutex(q->mutex); | |
| if (ret < 0) | |
| av_packet_free(&pkt1); | |
| return ret; | |
| } | |
| static int packet_queue_put_nullpacket(PacketQueue *q, AVPacket *pkt, int stream_index) | |
| { | |
| pkt->stream_index = stream_index; | |
| return packet_queue_put(q, pkt); | |
| } | |
| /* packet queue handling */ | |
| static int packet_queue_init(PacketQueue *q) | |
| { | |
| memset(q, 0, sizeof(PacketQueue)); | |
| q->pkt_list = av_fifo_alloc(sizeof(MyAVPacketList)); | |
| if (!q->pkt_list) | |
| return AVERROR(ENOMEM); | |
| q->mutex = SDL_CreateMutex(); | |
| if (!q->mutex) { | |
| av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError()); | |
| return AVERROR(ENOMEM); | |
| } | |
| q->cond = SDL_CreateCond(); | |
| if (!q->cond) { | |
| av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError()); | |
| return AVERROR(ENOMEM); | |
| } | |
| q->abort_request = 1; | |
| return 0; | |
| } | |
| static void packet_queue_flush(PacketQueue *q) | |
| { | |
| MyAVPacketList pkt1; | |
| SDL_LockMutex(q->mutex); | |
| while (av_fifo_size(q->pkt_list) >= sizeof(pkt1)) { | |
| av_fifo_generic_read(q->pkt_list, &pkt1, sizeof(pkt1), NULL); | |
| av_packet_free(&pkt1.pkt); | |
| } | |
| q->nb_packets = 0; | |
| q->size = 0; | |
| q->duration = 0; | |
| q->serial++; | |
| SDL_UnlockMutex(q->mutex); | |
| } | |
| static void packet_queue_destroy(PacketQueue *q) | |
| { | |
| packet_queue_flush(q); | |
| av_fifo_freep(&q->pkt_list); | |
| SDL_DestroyMutex(q->mutex); | |
| SDL_DestroyCond(q->cond); | |
| } | |
| static void packet_queue_abort(PacketQueue *q) | |
| { | |
| SDL_LockMutex(q->mutex); | |
| q->abort_request = 1; | |
| SDL_CondSignal(q->cond); | |
| SDL_UnlockMutex(q->mutex); | |
| } | |
| static void packet_queue_start(PacketQueue *q) | |
| { | |
| SDL_LockMutex(q->mutex); | |
| q->abort_request = 0; | |
| q->serial++; | |
| SDL_UnlockMutex(q->mutex); | |
| } | |
| /* return < 0 if aborted, 0 if no packet and > 0 if packet. */ | |
| static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial) | |
| { | |
| MyAVPacketList pkt1; | |
| int ret; | |
| SDL_LockMutex(q->mutex); | |
| for (;;) { | |
| if (q->abort_request) { | |
| ret = -1; | |
| break; | |
| } | |
| if (av_fifo_size(q->pkt_list) >= sizeof(pkt1)) { | |
| av_fifo_generic_read(q->pkt_list, &pkt1, sizeof(pkt1), NULL); | |
| q->nb_packets--; | |
| q->size -= pkt1.pkt->size + sizeof(pkt1); | |
| q->duration -= pkt1.pkt->duration; | |
| av_packet_move_ref(pkt, pkt1.pkt); | |
| if (serial) | |
| *serial = pkt1.serial; | |
| av_packet_free(&pkt1.pkt); | |
| ret = 1; | |
| break; | |
| } else if (!block) { | |
| ret = 0; | |
| break; | |
| } else { | |
| SDL_CondWait(q->cond, q->mutex); | |
| } | |
| } | |
| SDL_UnlockMutex(q->mutex); | |
| return ret; | |
| } | |
| static int decoder_init(Decoder *d, AVCodecContext *avctx, PacketQueue *queue, SDL_cond *empty_queue_cond) { | |
| memset(d, 0, sizeof(Decoder)); | |
| d->pkt = av_packet_alloc(); | |
| if (!d->pkt) | |
| return AVERROR(ENOMEM); | |
| d->avctx = avctx; | |
| d->queue = queue; | |
| d->empty_queue_cond = empty_queue_cond; | |
| d->start_pts = AV_NOPTS_VALUE; | |
| d->pkt_serial = -1; | |
| return 0; | |
| } | |
| static int decoder_decode_frame(Decoder *d, AVFrame *frame, AVSubtitle *sub) { | |
| int ret = AVERROR(EAGAIN); | |
| for (;;) { | |
| if (d->queue->serial == d->pkt_serial) { | |
| do { | |
| if (d->queue->abort_request) | |
| return -1; | |
| switch (d->avctx->codec_type) { | |
| case AVMEDIA_TYPE_VIDEO: | |
| ret = avcodec_receive_frame(d->avctx, frame); | |
| if (ret >= 0) { | |
| if (decoder_reorder_pts == -1) { | |
| frame->pts = frame->best_effort_timestamp; | |
| } else if (!decoder_reorder_pts) { | |
| frame->pts = frame->pkt_dts; | |
| } | |
| } | |
| break; | |
| case AVMEDIA_TYPE_AUDIO: | |
| ret = avcodec_receive_frame(d->avctx, frame); | |
| if (ret >= 0) { | |
| AVRational tb = (AVRational){1, frame->sample_rate}; | |
| if (frame->pts != AV_NOPTS_VALUE) | |
| frame->pts = av_rescale_q(frame->pts, d->avctx->pkt_timebase, tb); | |
| else if (d->next_pts != AV_NOPTS_VALUE) | |
| frame->pts = av_rescale_q(d->next_pts, d->next_pts_tb, tb); | |
| if (frame->pts != AV_NOPTS_VALUE) { | |
| d->next_pts = frame->pts + frame->nb_samples; | |
| d->next_pts_tb = tb; | |
| } | |
| } | |
| break; | |
| } | |
| if (ret == AVERROR_EOF) { | |
| d->finished = d->pkt_serial; | |
| avcodec_flush_buffers(d->avctx); | |
| return 0; | |
| } | |
| if (ret >= 0) | |
| return 1; | |
| } while (ret != AVERROR(EAGAIN)); | |
| } | |
| do { | |
| if (d->queue->nb_packets == 0) | |
| SDL_CondSignal(d->empty_queue_cond); | |
| if (d->packet_pending) { | |
| d->packet_pending = 0; | |
| } else { | |
| int old_serial = d->pkt_serial; | |
| if (packet_queue_get(d->queue, d->pkt, 1, &d->pkt_serial) < 0) | |
| return -1; | |
| if (old_serial != d->pkt_serial) { | |
| avcodec_flush_buffers(d->avctx); | |
| d->finished = 0; | |
| d->next_pts = d->start_pts; | |
| d->next_pts_tb = d->start_pts_tb; | |
| } | |
| } | |
| if (d->queue->serial == d->pkt_serial) | |
| break; | |
| av_packet_unref(d->pkt); | |
| } while (1); | |
| if (d->avctx->codec_type == AVMEDIA_TYPE_SUBTITLE) { | |
| int got_frame = 0; | |
| ret = avcodec_decode_subtitle2(d->avctx, sub, &got_frame, d->pkt); | |
| if (ret < 0) { | |
| ret = AVERROR(EAGAIN); | |
| } else { | |
| if (got_frame && !d->pkt->data) { | |
| d->packet_pending = 1; | |
| } | |
| ret = got_frame ? 0 : (d->pkt->data ? AVERROR(EAGAIN) : AVERROR_EOF); | |
| } | |
| av_packet_unref(d->pkt); | |
| } else { | |
| if (avcodec_send_packet(d->avctx, d->pkt) == AVERROR(EAGAIN)) { | |
| av_log(d->avctx, AV_LOG_ERROR, "Receive_frame and send_packet both returned EAGAIN, which is an API violation.\n"); | |
| d->packet_pending = 1; | |
| } else { | |
| av_packet_unref(d->pkt); | |
| } | |
| } | |
| } | |
| } | |
| static void decoder_destroy(Decoder *d) { | |
| av_packet_free(&d->pkt); | |
| avcodec_free_context(&d->avctx); | |
| } | |
| static void frame_queue_unref_item(Frame *vp) | |
| { | |
| av_frame_unref(vp->frame); | |
| avsubtitle_free(&vp->sub); | |
| } | |
| static int frame_queue_init(FrameQueue *f, PacketQueue *pktq, int max_size, int keep_last) | |
| { | |
| int i; | |
| memset(f, 0, sizeof(FrameQueue)); | |
| if (!(f->mutex = SDL_CreateMutex())) { | |
| av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError()); | |
| return AVERROR(ENOMEM); | |
| } | |
| if (!(f->cond = SDL_CreateCond())) { | |
| av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError()); | |
| return AVERROR(ENOMEM); | |
| } | |
| f->pktq = pktq; | |
| f->max_size = FFMIN(max_size, FRAME_QUEUE_SIZE); | |
| f->keep_last = !!keep_last; | |
| for (i = 0; i < f->max_size; i++) | |
| if (!(f->queue[i].frame = av_frame_alloc())) | |
| return AVERROR(ENOMEM); | |
| return 0; | |
| } | |
| static void frame_queue_destory(FrameQueue *f) | |
| { | |
| int i; | |
| for (i = 0; i < f->max_size; i++) { | |
| Frame *vp = &f->queue[i]; | |
| frame_queue_unref_item(vp); | |
| av_frame_free(&vp->frame); | |
| } | |
| SDL_DestroyMutex(f->mutex); | |
| SDL_DestroyCond(f->cond); | |
| } | |
| static void frame_queue_signal(FrameQueue *f) | |
| { | |
| SDL_LockMutex(f->mutex); | |
| SDL_CondSignal(f->cond); | |
| SDL_UnlockMutex(f->mutex); | |
| } | |
| static Frame *frame_queue_peek(FrameQueue *f) | |
| { | |
| return &f->queue[(f->rindex + f->rindex_shown) % f->max_size]; | |
| } | |
| static Frame *frame_queue_peek_next(FrameQueue *f) | |
| { | |
| return &f->queue[(f->rindex + f->rindex_shown + 1) % f->max_size]; | |
| } | |
| static Frame *frame_queue_peek_last(FrameQueue *f) | |
| { | |
| return &f->queue[f->rindex]; | |
| } | |
| static Frame *frame_queue_peek_writable(FrameQueue *f) | |
| { | |
| /* wait until we have space to put a new frame */ | |
| SDL_LockMutex(f->mutex); | |
| while (f->size >= f->max_size && | |
| !f->pktq->abort_request) { | |
| SDL_CondWait(f->cond, f->mutex); | |
| } | |
| SDL_UnlockMutex(f->mutex); | |
| if (f->pktq->abort_request) | |
| return NULL; | |
| return &f->queue[f->windex]; | |
| } | |
| static Frame *frame_queue_peek_readable(FrameQueue *f) | |
| { | |
| /* wait until we have a readable a new frame */ | |
| SDL_LockMutex(f->mutex); | |
| while (f->size - f->rindex_shown <= 0 && | |
| !f->pktq->abort_request) { | |
| SDL_CondWait(f->cond, f->mutex); | |
| } | |
| SDL_UnlockMutex(f->mutex); | |
| if (f->pktq->abort_request) | |
| return NULL; | |
| return &f->queue[(f->rindex + f->rindex_shown) % f->max_size]; | |
| } | |
| static void frame_queue_push(FrameQueue *f) | |
| { | |
| if (++f->windex == f->max_size) | |
| f->windex = 0; | |
| SDL_LockMutex(f->mutex); | |
| f->size++; | |
| SDL_CondSignal(f->cond); | |
| SDL_UnlockMutex(f->mutex); | |
| } | |
| static void frame_queue_next(FrameQueue *f) | |
| { | |
| if (f->keep_last && !f->rindex_shown) { | |
| f->rindex_shown = 1; | |
| return; | |
| } | |
| frame_queue_unref_item(&f->queue[f->rindex]); | |
| if (++f->rindex == f->max_size) | |
| f->rindex = 0; | |
| SDL_LockMutex(f->mutex); | |
| f->size--; | |
| SDL_CondSignal(f->cond); | |
| SDL_UnlockMutex(f->mutex); | |
| } | |
| /* return the number of undisplayed frames in the queue */ | |
| static int frame_queue_nb_remaining(FrameQueue *f) | |
| { | |
| return f->size - f->rindex_shown; | |
| } | |
| /* return last shown position */ | |
| static int64_t frame_queue_last_pos(FrameQueue *f) | |
| { | |
| Frame *fp = &f->queue[f->rindex]; | |
| if (f->rindex_shown && fp->serial == f->pktq->serial) | |
| return fp->pos; | |
| else | |
| return -1; | |
| } | |
| static void decoder_abort(Decoder *d, FrameQueue *fq) | |
| { | |
| packet_queue_abort(d->queue); | |
| frame_queue_signal(fq); | |
| SDL_WaitThread(d->decoder_tid, NULL); | |
| d->decoder_tid = NULL; | |
| packet_queue_flush(d->queue); | |
| } | |
| static inline void fill_rectangle(int x, int y, int w, int h) | |
| { | |
| SDL_Rect rect; | |
| rect.x = x; | |
| rect.y = y; | |
| rect.w = w; | |
| rect.h = h; | |
| if (w && h) | |
| SDL_RenderFillRect(renderer, &rect); | |
| } | |
| static int realloc_texture(SDL_Texture **texture, Uint32 new_format, int new_width, int new_height, SDL_BlendMode blendmode, int init_texture) | |
| { | |
| Uint32 format; | |
| int access, w, h; | |
| if (!*texture || SDL_QueryTexture(*texture, &format, &access, &w, &h) < 0 || new_width != w || new_height != h || new_format != format) { | |
| void *pixels; | |
| int pitch; | |
| if (*texture) | |
| SDL_DestroyTexture(*texture); | |
| if (!(*texture = SDL_CreateTexture(renderer, new_format, SDL_TEXTUREACCESS_STREAMING, new_width, new_height))) | |
| return -1; | |
| if (SDL_SetTextureBlendMode(*texture, blendmode) < 0) | |
| return -1; | |
| if (init_texture) { | |
| if (SDL_LockTexture(*texture, NULL, &pixels, &pitch) < 0) | |
| return -1; | |
| memset(pixels, 0, pitch * new_height); | |
| SDL_UnlockTexture(*texture); | |
| } | |
| av_log(NULL, AV_LOG_VERBOSE, "Created %dx%d texture with %s.\n", new_width, new_height, SDL_GetPixelFormatName(new_format)); | |
| } | |
| return 0; | |
| } | |
| static void calculate_display_rect(SDL_Rect *rect, | |
| int scr_xleft, int scr_ytop, int scr_width, int scr_height, | |
| int pic_width, int pic_height, AVRational pic_sar) | |
| { | |
| AVRational aspect_ratio = pic_sar; | |
| int64_t width, height, x, y; | |
| if (av_cmp_q(aspect_ratio, av_make_q(0, 1)) <= 0) | |
| aspect_ratio = av_make_q(1, 1); | |
| aspect_ratio = av_mul_q(aspect_ratio, av_make_q(pic_width, pic_height)); | |
| /* XXX: we suppose the screen has a 1.0 pixel ratio */ | |
| height = scr_height; | |
| width = av_rescale(height, aspect_ratio.num, aspect_ratio.den) & ~1; | |
| if (width > scr_width) { | |
| width = scr_width; | |
| height = av_rescale(width, aspect_ratio.den, aspect_ratio.num) & ~1; | |
| } | |
| x = (scr_width - width) / 2; | |
| y = (scr_height - height) / 2; | |
| rect->x = scr_xleft + x; | |
| rect->y = scr_ytop + y; | |
| rect->w = FFMAX((int)width, 1); | |
| rect->h = FFMAX((int)height, 1); | |
| } | |
| static void get_sdl_pix_fmt_and_blendmode(int format, Uint32 *sdl_pix_fmt, SDL_BlendMode *sdl_blendmode) | |
| { | |
| int i; | |
| *sdl_blendmode = SDL_BLENDMODE_NONE; | |
| *sdl_pix_fmt = SDL_PIXELFORMAT_UNKNOWN; | |
| if (format == AV_PIX_FMT_RGB32 || | |
| format == AV_PIX_FMT_RGB32_1 || | |
| format == AV_PIX_FMT_BGR32 || | |
| format == AV_PIX_FMT_BGR32_1) | |
| *sdl_blendmode = SDL_BLENDMODE_BLEND; | |
| for (i = 0; i < FF_ARRAY_ELEMS(sdl_texture_format_map) - 1; i++) { | |
| if (format == sdl_texture_format_map[i].format) { | |
| *sdl_pix_fmt = sdl_texture_format_map[i].texture_fmt; | |
| return; | |
| } | |
| } | |
| } | |
| static int upload_texture(SDL_Texture **tex, AVFrame *frame, struct SwsContext **img_convert_ctx) { | |
| int ret = 0; | |
| Uint32 sdl_pix_fmt; | |
| SDL_BlendMode sdl_blendmode; | |
| get_sdl_pix_fmt_and_blendmode(frame->format, &sdl_pix_fmt, &sdl_blendmode); | |
| if (realloc_texture(tex, sdl_pix_fmt == SDL_PIXELFORMAT_UNKNOWN ? SDL_PIXELFORMAT_ARGB8888 : sdl_pix_fmt, frame->width, frame->height, sdl_blendmode, 0) < 0) | |
| return -1; | |
| switch (sdl_pix_fmt) { | |
| case SDL_PIXELFORMAT_UNKNOWN: | |
| /* This should only happen if we are not using avfilter... */ | |
| *img_convert_ctx = sws_getCachedContext(*img_convert_ctx, | |
| frame->width, frame->height, frame->format, frame->width, frame->height, | |
| AV_PIX_FMT_BGRA, sws_flags, NULL, NULL, NULL); | |
| if (*img_convert_ctx != NULL) { | |
| uint8_t *pixels[4]; | |
| int pitch[4]; | |
| if (!SDL_LockTexture(*tex, NULL, (void **)pixels, pitch)) { | |
| sws_scale(*img_convert_ctx, (const uint8_t * const *)frame->data, frame->linesize, | |
| 0, frame->height, pixels, pitch); | |
| SDL_UnlockTexture(*tex); | |
| } | |
| } else { | |
| av_log(NULL, AV_LOG_FATAL, "Cannot initialize the conversion context\n"); | |
| ret = -1; | |
| } | |
| break; | |
| case SDL_PIXELFORMAT_IYUV: | |
| if (frame->linesize[0] > 0 && frame->linesize[1] > 0 && frame->linesize[2] > 0) { | |
| ret = SDL_UpdateYUVTexture(*tex, NULL, frame->data[0], frame->linesize[0], | |
| frame->data[1], frame->linesize[1], | |
| frame->data[2], frame->linesize[2]); | |
| } else if (frame->linesize[0] < 0 && frame->linesize[1] < 0 && frame->linesize[2] < 0) { | |
| ret = SDL_UpdateYUVTexture(*tex, NULL, frame->data[0] + frame->linesize[0] * (frame->height - 1), -frame->linesize[0], | |
| frame->data[1] + frame->linesize[1] * (AV_CEIL_RSHIFT(frame->height, 1) - 1), -frame->linesize[1], | |
| frame->data[2] + frame->linesize[2] * (AV_CEIL_RSHIFT(frame->height, 1) - 1), -frame->linesize[2]); | |
| } else { | |
| av_log(NULL, AV_LOG_ERROR, "Mixed negative and positive linesizes are not supported.\n"); | |
| return -1; | |
| } | |
| break; | |
| default: | |
| if (frame->linesize[0] < 0) { | |
| ret = SDL_UpdateTexture(*tex, NULL, frame->data[0] + frame->linesize[0] * (frame->height - 1), -frame->linesize[0]); | |
| } else { | |
| ret = SDL_UpdateTexture(*tex, NULL, frame->data[0], frame->linesize[0]); | |
| } | |
| break; | |
| } | |
| return ret; | |
| } | |
| static void set_sdl_yuv_conversion_mode(AVFrame *frame) | |
| { | |
| #if SDL_VERSION_ATLEAST(2,0,8) | |
| SDL_YUV_CONVERSION_MODE mode = SDL_YUV_CONVERSION_AUTOMATIC; | |
| if (frame && (frame->format == AV_PIX_FMT_YUV420P || frame->format == AV_PIX_FMT_YUYV422 || frame->format == AV_PIX_FMT_UYVY422)) { | |
| if (frame->color_range == AVCOL_RANGE_JPEG) | |
| mode = SDL_YUV_CONVERSION_JPEG; | |
| else if (frame->colorspace == AVCOL_SPC_BT709) | |
| mode = SDL_YUV_CONVERSION_BT709; | |
| else if (frame->colorspace == AVCOL_SPC_BT470BG || frame->colorspace == AVCOL_SPC_SMPTE170M || frame->colorspace == AVCOL_SPC_SMPTE240M) | |
| mode = SDL_YUV_CONVERSION_BT601; | |
| } | |
| SDL_SetYUVConversionMode(mode); | |
| #endif | |
| } | |
| static void video_image_display(VideoState *is) | |
| { | |
| Frame *vp; | |
| Frame *sp = NULL; | |
| SDL_Rect rect; | |
| vp = frame_queue_peek_last(&is->pictq); | |
| if (is->subtitle_st) { | |
| if (frame_queue_nb_remaining(&is->subpq) > 0) { | |
| sp = frame_queue_peek(&is->subpq); | |
| if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) { | |
| if (!sp->uploaded) { | |
| uint8_t* pixels[4]; | |
| int pitch[4]; | |
| int i; | |
| if (!sp->width || !sp->height) { | |
| sp->width = vp->width; | |
| sp->height = vp->height; | |
| } | |
| if (realloc_texture(&is->sub_texture, SDL_PIXELFORMAT_ARGB8888, sp->width, sp->height, SDL_BLENDMODE_BLEND, 1) < 0) | |
| return; | |
| for (i = 0; i < sp->sub.num_rects; i++) { | |
| AVSubtitleRect *sub_rect = sp->sub.rects[i]; | |
| sub_rect->x = av_clip(sub_rect->x, 0, sp->width ); | |
| sub_rect->y = av_clip(sub_rect->y, 0, sp->height); | |
| sub_rect->w = av_clip(sub_rect->w, 0, sp->width - sub_rect->x); | |
| sub_rect->h = av_clip(sub_rect->h, 0, sp->height - sub_rect->y); | |
| is->sub_convert_ctx = sws_getCachedContext(is->sub_convert_ctx, | |
| sub_rect->w, sub_rect->h, AV_PIX_FMT_PAL8, | |
| sub_rect->w, sub_rect->h, AV_PIX_FMT_BGRA, | |
| 0, NULL, NULL, NULL); | |
| if (!is->sub_convert_ctx) { | |
| av_log(NULL, AV_LOG_FATAL, "Cannot initialize the conversion context\n"); | |
| return; | |
| } | |
| if (!SDL_LockTexture(is->sub_texture, (SDL_Rect *)sub_rect, (void **)pixels, pitch)) { | |
| sws_scale(is->sub_convert_ctx, (const uint8_t * const *)sub_rect->data, sub_rect->linesize, | |
| 0, sub_rect->h, pixels, pitch); | |
| SDL_UnlockTexture(is->sub_texture); | |
| } | |
| } | |
| sp->uploaded = 1; | |
| } | |
| } else | |
| sp = NULL; | |
| } | |
| } | |
| calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp->width, vp->height, vp->sar); | |
| if (!vp->uploaded) { | |
| if (upload_texture(&is->vid_texture, vp->frame, &is->img_convert_ctx) < 0) | |
| return; | |
| vp->uploaded = 1; | |
| vp->flip_v = vp->frame->linesize[0] < 0; | |
| } | |
| set_sdl_yuv_conversion_mode(vp->frame); | |
| SDL_RenderCopyEx(renderer, is->vid_texture, NULL, &rect, 0, NULL, vp->flip_v ? SDL_FLIP_VERTICAL : 0); | |
| set_sdl_yuv_conversion_mode(NULL); | |
| if (sp) { | |
| #if USE_ONEPASS_SUBTITLE_RENDER | |
| SDL_RenderCopy(renderer, is->sub_texture, NULL, &rect); | |
| #else | |
| int i; | |
| double xratio = (double)rect.w / (double)sp->width; | |
| double yratio = (double)rect.h / (double)sp->height; | |
| for (i = 0; i < sp->sub.num_rects; i++) { | |
| SDL_Rect *sub_rect = (SDL_Rect*)sp->sub.rects[i]; | |
| SDL_Rect target = {.x = rect.x + sub_rect->x * xratio, | |
| .y = rect.y + sub_rect->y * yratio, | |
| .w = sub_rect->w * xratio, | |
| .h = sub_rect->h * yratio}; | |
| SDL_RenderCopy(renderer, is->sub_texture, sub_rect, &target); | |
| } | |
| #endif | |
| } | |
| } | |
| static inline int compute_mod(int a, int b) | |
| { | |
| return a < 0 ? a%b + b : a%b; | |
| } | |
| static void video_audio_display(VideoState *s) | |
| { | |
| int i, i_start, x, y1, y, ys, delay, n, nb_display_channels; | |
| int ch, channels, h, h2; | |
| int64_t time_diff; | |
| int rdft_bits, nb_freq; | |
| for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++) | |
| ; | |
| nb_freq = 1 << (rdft_bits - 1); | |
| /* compute display index : center on currently output samples */ | |
| channels = s->audio_tgt.channels; | |
| nb_display_channels = channels; | |
| if (!s->paused) { | |
| int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq); | |
| n = 2 * channels; | |
| delay = s->audio_write_buf_size; | |
| delay /= n; | |
| /* to be more precise, we take into account the time spent since | |
| the last buffer computation */ | |
| if (audio_callback_time) { | |
| time_diff = av_gettime_relative() - audio_callback_time; | |
| delay -= (time_diff * s->audio_tgt.freq) / 1000000; | |
| } | |
| delay += 2 * data_used; | |
| if (delay < data_used) | |
| delay = data_used; | |
| i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE); | |
| if (s->show_mode == SHOW_MODE_WAVES) { | |
| h = INT_MIN; | |
| for (i = 0; i < 1000; i += channels) { | |
| int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE; | |
| int a = s->sample_array[idx]; | |
| int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE]; | |
| int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE]; | |
| int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE]; | |
| int score = a - d; | |
| if (h < score && (b ^ c) < 0) { | |
| h = score; | |
| i_start = idx; | |
| } | |
| } | |
| } | |
| s->last_i_start = i_start; | |
| } else { | |
| i_start = s->last_i_start; | |
| } | |
| if (s->show_mode == SHOW_MODE_WAVES) { | |
| SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255); | |
| /* total height for one channel */ | |
| h = s->height / nb_display_channels; | |
| /* graph height / 2 */ | |
| h2 = (h * 9) / 20; | |
| for (ch = 0; ch < nb_display_channels; ch++) { | |
| i = i_start + ch; | |
| y1 = s->ytop + ch * h + (h / 2); /* position of center line */ | |
| for (x = 0; x < s->width; x++) { | |
| y = (s->sample_array[i] * h2) >> 15; | |
| if (y < 0) { | |
| y = -y; | |
| ys = y1 - y; | |
| } else { | |
| ys = y1; | |
| } | |
| fill_rectangle(s->xleft + x, ys, 1, y); | |
| i += channels; | |
| if (i >= SAMPLE_ARRAY_SIZE) | |
| i -= SAMPLE_ARRAY_SIZE; | |
| } | |
| } | |
| SDL_SetRenderDrawColor(renderer, 0, 0, 255, 255); | |
| for (ch = 1; ch < nb_display_channels; ch++) { | |
| y = s->ytop + ch * h; | |
| fill_rectangle(s->xleft, y, s->width, 1); | |
| } | |
| } else { | |
| if (realloc_texture(&s->vis_texture, SDL_PIXELFORMAT_ARGB8888, s->width, s->height, SDL_BLENDMODE_NONE, 1) < 0) | |
| return; | |
| if (s->xpos >= s->width) | |
| s->xpos = 0; | |
| nb_display_channels= FFMIN(nb_display_channels, 2); | |
| if (rdft_bits != s->rdft_bits) { | |
| av_rdft_end(s->rdft); | |
| av_free(s->rdft_data); | |
| s->rdft = av_rdft_init(rdft_bits, DFT_R2C); | |
| s->rdft_bits = rdft_bits; | |
| s->rdft_data = av_malloc_array(nb_freq, 4 *sizeof(*s->rdft_data)); | |
| } | |
| if (!s->rdft || !s->rdft_data){ | |
| av_log(NULL, AV_LOG_ERROR, "Failed to allocate buffers for RDFT, switching to waves display\n"); | |
| s->show_mode = SHOW_MODE_WAVES; | |
| } else { | |
| FFTSample *data[2]; | |
| SDL_Rect rect = {.x = s->xpos, .y = 0, .w = 1, .h = s->height}; | |
| uint32_t *pixels; | |
| int pitch; | |
| for (ch = 0; ch < nb_display_channels; ch++) { | |
| data[ch] = s->rdft_data + 2 * nb_freq * ch; | |
| i = i_start + ch; | |
| for (x = 0; x < 2 * nb_freq; x++) { | |
| double w = (x-nb_freq) * (1.0 / nb_freq); | |
| data[ch][x] = s->sample_array[i] * (1.0 - w * w); | |
| i += channels; | |
| if (i >= SAMPLE_ARRAY_SIZE) | |
| i -= SAMPLE_ARRAY_SIZE; | |
| } | |
| av_rdft_calc(s->rdft, data[ch]); | |
| } | |
| /* Least efficient way to do this, we should of course | |
| * directly access it but it is more than fast enough. */ | |
| if (!SDL_LockTexture(s->vis_texture, &rect, (void **)&pixels, &pitch)) { | |
| pitch >>= 2; | |
| pixels += pitch * s->height; | |
| for (y = 0; y < s->height; y++) { | |
| double w = 1 / sqrt(nb_freq); | |
| int a = sqrt(w * sqrt(data[0][2 * y + 0] * data[0][2 * y + 0] + data[0][2 * y + 1] * data[0][2 * y + 1])); | |
| int b = (nb_display_channels == 2 ) ? sqrt(w * hypot(data[1][2 * y + 0], data[1][2 * y + 1])) | |
| : a; | |
| a = FFMIN(a, 255); | |
| b = FFMIN(b, 255); | |
| pixels -= pitch; | |
| *pixels = (a << 16) + (b << 8) + ((a+b) >> 1); | |
| } | |
| SDL_UnlockTexture(s->vis_texture); | |
| } | |
| SDL_RenderCopy(renderer, s->vis_texture, NULL, NULL); | |
| } | |
| if (!s->paused) | |
| s->xpos++; | |
| } | |
| } | |
| static void stream_component_close(VideoState *is, int stream_index) | |
| { | |
| AVFormatContext *ic = is->ic; | |
| AVCodecParameters *codecpar; | |
| if (stream_index < 0 || stream_index >= ic->nb_streams) | |
| return; | |
| codecpar = ic->streams[stream_index]->codecpar; | |
| switch (codecpar->codec_type) { | |
| case AVMEDIA_TYPE_AUDIO: | |
| decoder_abort(&is->auddec, &is->sampq); | |
| SDL_CloseAudioDevice(audio_dev); | |
| decoder_destroy(&is->auddec); | |
| swr_free(&is->swr_ctx); | |
| av_freep(&is->audio_buf1); | |
| is->audio_buf1_size = 0; | |
| is->audio_buf = NULL; | |
| if (is->rdft) { | |
| av_rdft_end(is->rdft); | |
| av_freep(&is->rdft_data); | |
| is->rdft = NULL; | |
| is->rdft_bits = 0; | |
| } | |
| break; | |
| case AVMEDIA_TYPE_VIDEO: | |
| decoder_abort(&is->viddec, &is->pictq); | |
| decoder_destroy(&is->viddec); | |
| break; | |
| case AVMEDIA_TYPE_SUBTITLE: | |
| decoder_abort(&is->subdec, &is->subpq); | |
| decoder_destroy(&is->subdec); | |
| break; | |
| default: | |
| break; | |
| } | |
| ic->streams[stream_index]->discard = AVDISCARD_ALL; | |
| switch (codecpar->codec_type) { | |
| case AVMEDIA_TYPE_AUDIO: | |
| is->audio_st = NULL; | |
| is->audio_stream = -1; | |
| break; | |
| case AVMEDIA_TYPE_VIDEO: | |
| is->video_st = NULL; | |
| is->video_stream = -1; | |
| break; | |
| case AVMEDIA_TYPE_SUBTITLE: | |
| is->subtitle_st = NULL; | |
| is->subtitle_stream = -1; | |
| break; | |
| default: | |
| break; | |
| } | |
| } | |
| static void stream_close(VideoState *is) | |
| { | |
| /* XXX: use a special url_shutdown call to abort parse cleanly */ | |
| is->abort_request = 1; | |
| SDL_WaitThread(is->read_tid, NULL); | |
| /* close each stream */ | |
| if (is->audio_stream >= 0) | |
| stream_component_close(is, is->audio_stream); | |
| if (is->video_stream >= 0) | |
| stream_component_close(is, is->video_stream); | |
| if (is->subtitle_stream >= 0) | |
| stream_component_close(is, is->subtitle_stream); | |
| avformat_close_input(&is->ic); | |
| packet_queue_destroy(&is->videoq); | |
| packet_queue_destroy(&is->audioq); | |
| packet_queue_destroy(&is->subtitleq); | |
| /* free all pictures */ | |
| frame_queue_destory(&is->pictq); | |
| frame_queue_destory(&is->sampq); | |
| frame_queue_destory(&is->subpq); | |
| SDL_DestroyCond(is->continue_read_thread); | |
| sws_freeContext(is->img_convert_ctx); | |
| sws_freeContext(is->sub_convert_ctx); | |
| av_free(is->filename); | |
| if (is->vis_texture) | |
| SDL_DestroyTexture(is->vis_texture); | |
| if (is->vid_texture) | |
| SDL_DestroyTexture(is->vid_texture); | |
| if (is->sub_texture) | |
| SDL_DestroyTexture(is->sub_texture); | |
| av_free(is); | |
| } | |
| static void do_exit(VideoState *is) | |
| { | |
| if (is) { | |
| stream_close(is); | |
| } | |
| if (renderer) | |
| SDL_DestroyRenderer(renderer); | |
| if (window) | |
| SDL_DestroyWindow(window); | |
| uninit_opts(); | |
| #if CONFIG_AVFILTER | |
| av_freep(&vfilters_list); | |
| #endif | |
| avformat_network_deinit(); | |
| if (show_status) | |
| printf("\n"); | |
| SDL_Quit(); | |
| av_log(NULL, AV_LOG_QUIET, "%s", ""); | |
| exit(0); | |
| } | |
| static void sigterm_handler(int sig) | |
| { | |
| exit(123); | |
| } | |
| static void set_default_window_size(int width, int height, AVRational sar) | |
| { | |
| SDL_Rect rect; | |
| int max_width = screen_width ? screen_width : INT_MAX; | |
| int max_height = screen_height ? screen_height : INT_MAX; | |
| if (max_width == INT_MAX && max_height == INT_MAX) | |
| max_height = height; | |
| calculate_display_rect(&rect, 0, 0, max_width, max_height, width, height, sar); | |
| default_width = rect.w; | |
| default_height = rect.h; | |
| } | |
| static int video_open(VideoState *is) | |
| { | |
| int w,h; | |
| w = screen_width ? screen_width : default_width; | |
| h = screen_height ? screen_height : default_height; | |
| if (!window_title) | |
| window_title = input_filename; | |
| SDL_SetWindowTitle(window, window_title); | |
| SDL_SetWindowSize(window, w, h); | |
| SDL_SetWindowPosition(window, screen_left, screen_top); | |
| if (is_full_screen) | |
| SDL_SetWindowFullscreen(window, SDL_WINDOW_FULLSCREEN_DESKTOP); | |
| SDL_ShowWindow(window); | |
| is->width = w; | |
| is->height = h; | |
| return 0; | |
| } | |
| /* display the current picture, if any */ | |
| static void video_display(VideoState *is) | |
| { | |
| if (!is->width) | |
| video_open(is); | |
| SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255); | |
| SDL_RenderClear(renderer); | |
| if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO) | |
| video_audio_display(is); | |
| else if (is->video_st) | |
| video_image_display(is); | |
| SDL_RenderPresent(renderer); | |
| } | |
| static double get_clock(Clock *c) | |
| { | |
| if (*c->queue_serial != c->serial) | |
| return NAN; | |
| if (c->paused) { | |
| return c->pts; | |
| } else { | |
| double time = av_gettime_relative() / 1000000.0; | |
| return c->pts_drift + time - (time - c->last_updated) * (1.0 - c->speed); | |
| } | |
| } | |
| static void set_clock_at(Clock *c, double pts, int serial, double time) | |
| { | |
| c->pts = pts; | |
| c->last_updated = time; | |
| c->pts_drift = c->pts - time; | |
| c->serial = serial; | |
| } | |
| static void set_clock(Clock *c, double pts, int serial) | |
| { | |
| double time = av_gettime_relative() / 1000000.0; | |
| set_clock_at(c, pts, serial, time); | |
| } | |
| static void set_clock_speed(Clock *c, double speed) | |
| { | |
| set_clock(c, get_clock(c), c->serial); | |
| c->speed = speed; | |
| } | |
| static void init_clock(Clock *c, int *queue_serial) | |
| { | |
| c->speed = 1.0; | |
| c->paused = 0; | |
| c->queue_serial = queue_serial; | |
| set_clock(c, NAN, -1); | |
| } | |
| static void sync_clock_to_slave(Clock *c, Clock *slave) | |
| { | |
| double clock = get_clock(c); | |
| double slave_clock = get_clock(slave); | |
| if (!isnan(slave_clock) && (isnan(clock) || fabs(clock - slave_clock) > AV_NOSYNC_THRESHOLD)) | |
| set_clock(c, slave_clock, slave->serial); | |
| } | |
| static int get_master_sync_type(VideoState *is) { | |
| if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) { | |
| if (is->video_st) | |
| return AV_SYNC_VIDEO_MASTER; | |
| else | |
| return AV_SYNC_AUDIO_MASTER; | |
| } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) { | |
| if (is->audio_st) | |
| return AV_SYNC_AUDIO_MASTER; | |
| else | |
| return AV_SYNC_EXTERNAL_CLOCK; | |
| } else { | |
| return AV_SYNC_EXTERNAL_CLOCK; | |
| } | |
| } | |
| /* get the current master clock value */ | |
| static double get_master_clock(VideoState *is) | |
| { | |
| double val; | |
| switch (get_master_sync_type(is)) { | |
| case AV_SYNC_VIDEO_MASTER: | |
| val = get_clock(&is->vidclk); | |
| break; | |
| case AV_SYNC_AUDIO_MASTER: | |
| val = get_clock(&is->audclk); | |
| break; | |
| default: | |
| val = get_clock(&is->extclk); | |
| break; | |
| } | |
| return val; | |
| } | |
| static void check_external_clock_speed(VideoState *is) { | |
| if (is->video_stream >= 0 && is->videoq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES || | |
| is->audio_stream >= 0 && is->audioq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES) { | |
| set_clock_speed(&is->extclk, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->extclk.speed - EXTERNAL_CLOCK_SPEED_STEP)); | |
| } else if ((is->video_stream < 0 || is->videoq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES) && | |
| (is->audio_stream < 0 || is->audioq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES)) { | |
| set_clock_speed(&is->extclk, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->extclk.speed + EXTERNAL_CLOCK_SPEED_STEP)); | |
| } else { | |
| double speed = is->extclk.speed; | |
| if (speed != 1.0) | |
| set_clock_speed(&is->extclk, speed + EXTERNAL_CLOCK_SPEED_STEP * (1.0 - speed) / fabs(1.0 - speed)); | |
| } | |
| } | |
| /* seek in the stream */ | |
| static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes) | |
| { | |
| if (!is->seek_req) { | |
| is->seek_pos = pos; | |
| is->seek_rel = rel; | |
| is->seek_flags &= ~AVSEEK_FLAG_BYTE; | |
| if (seek_by_bytes) | |
| is->seek_flags |= AVSEEK_FLAG_BYTE; | |
| is->seek_req = 1; | |
| SDL_CondSignal(is->continue_read_thread); | |
| } | |
| } | |
| /* pause or resume the video */ | |
| static void stream_toggle_pause(VideoState *is) | |
| { | |
| if (is->paused) { | |
| is->frame_timer += av_gettime_relative() / 1000000.0 - is->vidclk.last_updated; | |
| if (is->read_pause_return != AVERROR(ENOSYS)) { | |
| is->vidclk.paused = 0; | |
| } | |
| set_clock(&is->vidclk, get_clock(&is->vidclk), is->vidclk.serial); | |
| } | |
| set_clock(&is->extclk, get_clock(&is->extclk), is->extclk.serial); | |
| is->paused = is->audclk.paused = is->vidclk.paused = is->extclk.paused = !is->paused; | |
| } | |
| static void toggle_pause(VideoState *is) | |
| { | |
| stream_toggle_pause(is); | |
| is->step = 0; | |
| } | |
| static void toggle_mute(VideoState *is) | |
| { | |
| is->muted = !is->muted; | |
| } | |
| static void update_volume(VideoState *is, int sign, double step) | |
| { | |
| double volume_level = is->audio_volume ? (20 * log(is->audio_volume / (double)SDL_MIX_MAXVOLUME) / log(10)) : -1000.0; | |
| int new_volume = lrint(SDL_MIX_MAXVOLUME * pow(10.0, (volume_level + sign * step) / 20.0)); | |
| is->audio_volume = av_clip(is->audio_volume == new_volume ? (is->audio_volume + sign) : new_volume, 0, SDL_MIX_MAXVOLUME); | |
| } | |
| static void step_to_next_frame(VideoState *is) | |
| { | |
| /* if the stream is paused unpause it, then step */ | |
| if (is->paused) | |
| stream_toggle_pause(is); | |
| is->step = 1; | |
| } | |
| static double compute_target_delay(double delay, VideoState *is) | |
| { | |
| double sync_threshold, diff = 0; | |
| /* update delay to follow master synchronisation source */ | |
| if (get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER) { | |
| /* if video is slave, we try to correct big delays by | |
| duplicating or deleting a frame */ | |
| diff = get_clock(&is->vidclk) - get_master_clock(is); | |
| /* skip or repeat frame. We take into account the | |
| delay to compute the threshold. I still don't know | |
| if it is the best guess */ | |
| sync_threshold = FFMAX(AV_SYNC_THRESHOLD_MIN, FFMIN(AV_SYNC_THRESHOLD_MAX, delay)); | |
| if (!isnan(diff) && fabs(diff) < is->max_frame_duration) { | |
| if (diff <= -sync_threshold) | |
| delay = FFMAX(0, delay + diff); | |
| else if (diff >= sync_threshold && delay > AV_SYNC_FRAMEDUP_THRESHOLD) | |
| delay = delay + diff; | |
| else if (diff >= sync_threshold) | |
| delay = 2 * delay; | |
| } | |
| } | |
| av_log(NULL, AV_LOG_TRACE, "video: delay=%0.3f A-V=%f\n", | |
| delay, -diff); | |
| return delay; | |
| } | |
| static double vp_duration(VideoState *is, Frame *vp, Frame *nextvp) { | |
| if (vp->serial == nextvp->serial) { | |
| double duration = nextvp->pts - vp->pts; | |
| if (isnan(duration) || duration <= 0 || duration > is->max_frame_duration) | |
| return vp->duration; | |
| else | |
| return duration; | |
| } else { | |
| return 0.0; | |
| } | |
| } | |
| static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) { | |
| /* update current video pts */ | |
| set_clock(&is->vidclk, pts, serial); | |
| sync_clock_to_slave(&is->extclk, &is->vidclk); | |
| } | |
| /* called to display each frame */ | |
| static void video_refresh(void *opaque, double *remaining_time) | |
| { | |
| VideoState *is = opaque; | |
| double time; | |
| Frame *sp, *sp2; | |
| if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime) | |
| check_external_clock_speed(is); | |
| if (!display_disable && is->show_mode != SHOW_MODE_VIDEO && is->audio_st) { | |
| time = av_gettime_relative() / 1000000.0; | |
| if (is->force_refresh || is->last_vis_time + rdftspeed < time) { | |
| video_display(is); | |
| is->last_vis_time = time; | |
| } | |
| *remaining_time = FFMIN(*remaining_time, is->last_vis_time + rdftspeed - time); | |
| } | |
| if (is->video_st) { | |
| retry: | |
| if (frame_queue_nb_remaining(&is->pictq) == 0) { | |
| // nothing to do, no picture to display in the queue | |
| } else { | |
| double last_duration, duration, delay; | |
| Frame *vp, *lastvp; | |
| /* dequeue the picture */ | |
| lastvp = frame_queue_peek_last(&is->pictq); | |
| vp = frame_queue_peek(&is->pictq); | |
| if (vp->serial != is->videoq.serial) { | |
| frame_queue_next(&is->pictq); | |
| goto retry; | |
| } | |
| if (lastvp->serial != vp->serial) | |
| is->frame_timer = av_gettime_relative() / 1000000.0; | |
| if (is->paused) | |
| goto display; | |
| /* compute nominal last_duration */ | |
| last_duration = vp_duration(is, lastvp, vp); | |
| delay = compute_target_delay(last_duration, is); | |
| time= av_gettime_relative()/1000000.0; | |
| if (time < is->frame_timer + delay) { | |
| *remaining_time = FFMIN(is->frame_timer + delay - time, *remaining_time); | |
| goto display; | |
| } | |
| is->frame_timer += delay; | |
| if (delay > 0 && time - is->frame_timer > AV_SYNC_THRESHOLD_MAX) | |
| is->frame_timer = time; | |
| SDL_LockMutex(is->pictq.mutex); | |
| if (!isnan(vp->pts)) | |
| update_video_pts(is, vp->pts, vp->pos, vp->serial); | |
| SDL_UnlockMutex(is->pictq.mutex); | |
| if (frame_queue_nb_remaining(&is->pictq) > 1) { | |
| Frame *nextvp = frame_queue_peek_next(&is->pictq); | |
| duration = vp_duration(is, vp, nextvp); | |
| if(!is->step && (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){ | |
| is->frame_drops_late++; | |
| frame_queue_next(&is->pictq); | |
| goto retry; | |
| } | |
| } | |
| if (is->subtitle_st) { | |
| while (frame_queue_nb_remaining(&is->subpq) > 0) { | |
| sp = frame_queue_peek(&is->subpq); | |
| if (frame_queue_nb_remaining(&is->subpq) > 1) | |
| sp2 = frame_queue_peek_next(&is->subpq); | |
| else | |
| sp2 = NULL; | |
| if (sp->serial != is->subtitleq.serial | |
| || (is->vidclk.pts > (sp->pts + ((float) sp->sub.end_display_time / 1000))) | |
| || (sp2 && is->vidclk.pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000)))) | |
| { | |
| if (sp->uploaded) { | |
| int i; | |
| for (i = 0; i < sp->sub.num_rects; i++) { | |
| AVSubtitleRect *sub_rect = sp->sub.rects[i]; | |
| uint8_t *pixels; | |
| int pitch, j; | |
| if (!SDL_LockTexture(is->sub_texture, (SDL_Rect *)sub_rect, (void **)&pixels, &pitch)) { | |
| for (j = 0; j < sub_rect->h; j++, pixels += pitch) | |
| memset(pixels, 0, sub_rect->w << 2); | |
| SDL_UnlockTexture(is->sub_texture); | |
| } | |
| } | |
| } | |
| frame_queue_next(&is->subpq); | |
| } else { | |
| break; | |
| } | |
| } | |
| } | |
| frame_queue_next(&is->pictq); | |
| is->force_refresh = 1; | |
| if (is->step && !is->paused) | |
| stream_toggle_pause(is); | |
| } | |
| display: | |
| /* display picture */ | |
| if (!display_disable && is->force_refresh && is->show_mode == SHOW_MODE_VIDEO && is->pictq.rindex_shown) | |
| video_display(is); | |
| } | |
| is->force_refresh = 0; | |
| if (show_status) { | |
| AVBPrint buf; | |
| static int64_t last_time; | |
| int64_t cur_time; | |
| int aqsize, vqsize, sqsize; | |
| double av_diff; | |
| cur_time = av_gettime_relative(); | |
| if (!last_time || (cur_time - last_time) >= 30000) { | |
| aqsize = 0; | |
| vqsize = 0; | |
| sqsize = 0; | |
| if (is->audio_st) | |
| aqsize = is->audioq.size; | |
| if (is->video_st) | |
| vqsize = is->videoq.size; | |
| if (is->subtitle_st) | |
| sqsize = is->subtitleq.size; | |
| av_diff = 0; | |
| if (is->audio_st && is->video_st) | |
| av_diff = get_clock(&is->audclk) - get_clock(&is->vidclk); | |
| else if (is->video_st) | |
| av_diff = get_master_clock(is) - get_clock(&is->vidclk); | |
| else if (is->audio_st) | |
| av_diff = get_master_clock(is) - get_clock(&is->audclk); | |
| av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC); | |
| av_bprintf(&buf, | |
| "%7.2f %s:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r", | |
| get_master_clock(is), | |
| (is->audio_st && is->video_st) ? "A-V" : (is->video_st ? "M-V" : (is->audio_st ? "M-A" : " ")), | |
| av_diff, | |
| is->frame_drops_early + is->frame_drops_late, | |
| aqsize / 1024, | |
| vqsize / 1024, | |
| sqsize, | |
| is->video_st ? is->viddec.avctx->pts_correction_num_faulty_dts : 0, | |
| is->video_st ? is->viddec.avctx->pts_correction_num_faulty_pts : 0); | |
| if (show_status == 1 && AV_LOG_INFO > av_log_get_level()) | |
| fprintf(stderr, "%s", buf.str); | |
| else | |
| av_log(NULL, AV_LOG_INFO, "%s", buf.str); | |
| fflush(stderr); | |
| av_bprint_finalize(&buf, NULL); | |
| last_time = cur_time; | |
| } | |
| } | |
| } | |
| static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, double duration, int64_t pos, int serial) | |
| { | |
| Frame *vp; | |
| #if defined(DEBUG_SYNC) | |
| printf("frame_type=%c pts=%0.3f\n", | |
| av_get_picture_type_char(src_frame->pict_type), pts); | |
| #endif | |
| if (!(vp = frame_queue_peek_writable(&is->pictq))) | |
| return -1; | |
| vp->sar = src_frame->sample_aspect_ratio; | |
| vp->uploaded = 0; | |
| vp->width = src_frame->width; | |
| vp->height = src_frame->height; | |
| vp->format = src_frame->format; | |
| vp->pts = pts; | |
| vp->duration = duration; | |
| vp->pos = pos; | |
| vp->serial = serial; | |
| set_default_window_size(vp->width, vp->height, vp->sar); | |
| av_frame_move_ref(vp->frame, src_frame); | |
| frame_queue_push(&is->pictq); | |
| return 0; | |
| } | |
| static int get_video_frame(VideoState *is, AVFrame *frame) | |
| { | |
| int got_picture; | |
| if ((got_picture = decoder_decode_frame(&is->viddec, frame, NULL)) < 0) | |
| return -1; | |
| if (got_picture) { | |
| double dpts = NAN; | |
| if (frame->pts != AV_NOPTS_VALUE) | |
| dpts = av_q2d(is->video_st->time_base) * frame->pts; | |
| frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame); | |
| if (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) { | |
| if (frame->pts != AV_NOPTS_VALUE) { | |
| double diff = dpts - get_master_clock(is); | |
| if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD && | |
| diff - is->frame_last_filter_delay < 0 && | |
| is->viddec.pkt_serial == is->vidclk.serial && | |
| is->videoq.nb_packets) { | |
| is->frame_drops_early++; | |
| av_frame_unref(frame); | |
| got_picture = 0; | |
| } | |
| } | |
| } | |
| } | |
| return got_picture; | |
| } | |
| #if CONFIG_AVFILTER | |
| static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph, | |
| AVFilterContext *source_ctx, AVFilterContext *sink_ctx) | |
| { | |
| int ret, i; | |
| int nb_filters = graph->nb_filters; | |
| AVFilterInOut *outputs = NULL, *inputs = NULL; | |
| if (filtergraph) { | |
| outputs = avfilter_inout_alloc(); | |
| inputs = avfilter_inout_alloc(); | |
| if (!outputs || !inputs) { | |
| ret = AVERROR(ENOMEM); | |
| goto fail; | |
| } | |
| outputs->name = av_strdup("in"); | |
| outputs->filter_ctx = source_ctx; | |
| outputs->pad_idx = 0; | |
| outputs->next = NULL; | |
| inputs->name = av_strdup("out"); | |
| inputs->filter_ctx = sink_ctx; | |
| inputs->pad_idx = 0; | |
| inputs->next = NULL; | |
| if ((ret = avfilter_graph_parse_ptr(graph, filtergraph, &inputs, &outputs, NULL)) < 0) | |
| goto fail; | |
| } else { | |
| if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0) | |
| goto fail; | |
| } | |
| /* Reorder the filters to ensure that inputs of the custom filters are merged first */ | |
| for (i = 0; i < graph->nb_filters - nb_filters; i++) | |
| FFSWAP(AVFilterContext*, graph->filters[i], graph->filters[i + nb_filters]); | |
| ret = avfilter_graph_config(graph, NULL); | |
| fail: | |
| avfilter_inout_free(&outputs); | |
| avfilter_inout_free(&inputs); | |
| return ret; | |
| } | |
| static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters, AVFrame *frame) | |
| { | |
| enum AVPixelFormat pix_fmts[FF_ARRAY_ELEMS(sdl_texture_format_map)]; | |
| char sws_flags_str[512] = ""; | |
| char buffersrc_args[256]; | |
| int ret; | |
| AVFilterContext *filt_src = NULL, *filt_out = NULL, *last_filter = NULL; | |
| AVCodecParameters *codecpar = is->video_st->codecpar; | |
| AVRational fr = av_guess_frame_rate(is->ic, is->video_st, NULL); | |
| AVDictionaryEntry *e = NULL; | |
| int nb_pix_fmts = 0; | |
| int i, j; | |
| for (i = 0; i < renderer_info.num_texture_formats; i++) { | |
| for (j = 0; j < FF_ARRAY_ELEMS(sdl_texture_format_map) - 1; j++) { | |
| if (renderer_info.texture_formats[i] == sdl_texture_format_map[j].texture_fmt) { | |
| pix_fmts[nb_pix_fmts++] = sdl_texture_format_map[j].format; | |
| break; | |
| } | |
| } | |
| } | |
| pix_fmts[nb_pix_fmts] = AV_PIX_FMT_NONE; | |
| while ((e = av_dict_get(sws_dict, "", e, AV_DICT_IGNORE_SUFFIX))) { | |
| if (!strcmp(e->key, "sws_flags")) { | |
| av_strlcatf(sws_flags_str, sizeof(sws_flags_str), "%s=%s:", "flags", e->value); | |
| } else | |
| av_strlcatf(sws_flags_str, sizeof(sws_flags_str), "%s=%s:", e->key, e->value); | |
| } | |
| if (strlen(sws_flags_str)) | |
| sws_flags_str[strlen(sws_flags_str)-1] = '\0'; | |
| graph->scale_sws_opts = av_strdup(sws_flags_str); | |
| snprintf(buffersrc_args, sizeof(buffersrc_args), | |
| "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d", | |
| frame->width, frame->height, frame->format, | |
| is->video_st->time_base.num, is->video_st->time_base.den, | |
| codecpar->sample_aspect_ratio.num, FFMAX(codecpar->sample_aspect_ratio.den, 1)); | |
| if (fr.num && fr.den) | |
| av_strlcatf(buffersrc_args, sizeof(buffersrc_args), ":frame_rate=%d/%d", fr.num, fr.den); | |
| if ((ret = avfilter_graph_create_filter(&filt_src, | |
| avfilter_get_by_name("buffer"), | |
| "ffplay_buffer", buffersrc_args, NULL, | |
| graph)) < 0) | |
| goto fail; | |
| ret = avfilter_graph_create_filter(&filt_out, | |
| avfilter_get_by_name("buffersink"), | |
| "ffplay_buffersink", NULL, NULL, graph); | |
| if (ret < 0) | |
| goto fail; | |
| if ((ret = av_opt_set_int_list(filt_out, "pix_fmts", pix_fmts, AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0) | |
| goto fail; | |
| last_filter = filt_out; | |
| /* Note: this macro adds a filter before the lastly added filter, so the | |
| * processing order of the filters is in reverse */ | |
| #define INSERT_FILT(name, arg) do { \ | |
| AVFilterContext *filt_ctx; \ | |
| \ | |
| ret = avfilter_graph_create_filter(&filt_ctx, \ | |
| avfilter_get_by_name(name), \ | |
| "ffplay_" name, arg, NULL, graph); \ | |
| if (ret < 0) \ | |
| goto fail; \ | |
| \ | |
| ret = avfilter_link(filt_ctx, 0, last_filter, 0); \ | |
| if (ret < 0) \ | |
| goto fail; \ | |
| \ | |
| last_filter = filt_ctx; \ | |
| } while (0) | |
| if (autorotate) { | |
| double theta = get_rotation(is->video_st); | |
| if (fabs(theta - 90) < 1.0) { | |
| INSERT_FILT("transpose", "clock"); | |
| } else if (fabs(theta - 180) < 1.0) { | |
| INSERT_FILT("hflip", NULL); | |
| INSERT_FILT("vflip", NULL); | |
| } else if (fabs(theta - 270) < 1.0) { | |
| INSERT_FILT("transpose", "cclock"); | |
| } else if (fabs(theta) > 1.0) { | |
| char rotate_buf[64]; | |
| snprintf(rotate_buf, sizeof(rotate_buf), "%f*PI/180", theta); | |
| INSERT_FILT("rotate", rotate_buf); | |
| } | |
| } | |
| if ((ret = configure_filtergraph(graph, vfilters, filt_src, last_filter)) < 0) | |
| goto fail; | |
| is->in_video_filter = filt_src; | |
| is->out_video_filter = filt_out; | |
| fail: | |
| return ret; | |
| } | |
| static int configure_audio_filters(VideoState *is, const char *afilters, int force_output_format) | |
| { | |
| static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE }; | |
| int sample_rates[2] = { 0, -1 }; | |
| int64_t channel_layouts[2] = { 0, -1 }; | |
| int channels[2] = { 0, -1 }; | |
| AVFilterContext *filt_asrc = NULL, *filt_asink = NULL; | |
| char aresample_swr_opts[512] = ""; | |
| AVDictionaryEntry *e = NULL; | |
| char asrc_args[256]; | |
| int ret; | |
| avfilter_graph_free(&is->agraph); | |
| if (!(is->agraph = avfilter_graph_alloc())) | |
| return AVERROR(ENOMEM); | |
| is->agraph->nb_threads = filter_nbthreads; | |
| while ((e = av_dict_get(swr_opts, "", e, AV_DICT_IGNORE_SUFFIX))) | |
| av_strlcatf(aresample_swr_opts, sizeof(aresample_swr_opts), "%s=%s:", e->key, e->value); | |
| if (strlen(aresample_swr_opts)) | |
| aresample_swr_opts[strlen(aresample_swr_opts)-1] = '\0'; | |
| av_opt_set(is->agraph, "aresample_swr_opts", aresample_swr_opts, 0); | |
| ret = snprintf(asrc_args, sizeof(asrc_args), | |
| "sample_rate=%d:sample_fmt=%s:channels=%d:time_base=%d/%d", | |
| is->audio_filter_src.freq, av_get_sample_fmt_name(is->audio_filter_src.fmt), | |
| is->audio_filter_src.channels, | |
| 1, is->audio_filter_src.freq); | |
| if (is->audio_filter_src.channel_layout) | |
| snprintf(asrc_args + ret, sizeof(asrc_args) - ret, | |
| ":channel_layout=0x%"PRIx64, is->audio_filter_src.channel_layout); | |
| ret = avfilter_graph_create_filter(&filt_asrc, | |
| avfilter_get_by_name("abuffer"), "ffplay_abuffer", | |
| asrc_args, NULL, is->agraph); | |
| if (ret < 0) | |
| goto end; | |
| ret = avfilter_graph_create_filter(&filt_asink, | |
| avfilter_get_by_name("abuffersink"), "ffplay_abuffersink", | |
| NULL, NULL, is->agraph); | |
| if (ret < 0) | |
| goto end; | |
| if ((ret = av_opt_set_int_list(filt_asink, "sample_fmts", sample_fmts, AV_SAMPLE_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0) | |
| goto end; | |
| if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0) | |
| goto end; | |
| if (force_output_format) { | |
| channel_layouts[0] = is->audio_tgt.channel_layout; | |
| channels [0] = is->audio_tgt.channel_layout ? -1 : is->audio_tgt.channels; | |
| sample_rates [0] = is->audio_tgt.freq; | |
| if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 0, AV_OPT_SEARCH_CHILDREN)) < 0) | |
| goto end; | |
| if ((ret = av_opt_set_int_list(filt_asink, "channel_layouts", channel_layouts, -1, AV_OPT_SEARCH_CHILDREN)) < 0) | |
| goto end; | |
| if ((ret = av_opt_set_int_list(filt_asink, "channel_counts" , channels , -1, AV_OPT_SEARCH_CHILDREN)) < 0) | |
| goto end; | |
| if ((ret = av_opt_set_int_list(filt_asink, "sample_rates" , sample_rates , -1, AV_OPT_SEARCH_CHILDREN)) < 0) | |
| goto end; | |
| } | |
| if ((ret = configure_filtergraph(is->agraph, afilters, filt_asrc, filt_asink)) < 0) | |
| goto end; | |
| is->in_audio_filter = filt_asrc; | |
| is->out_audio_filter = filt_asink; | |
| end: | |
| if (ret < 0) | |
| avfilter_graph_free(&is->agraph); | |
| return ret; | |
| } | |
| #endif /* CONFIG_AVFILTER */ | |
| static int audio_thread(void *arg) | |
| { | |
| VideoState *is = arg; | |
| AVFrame *frame = av_frame_alloc(); | |
| Frame *af; | |
| #if CONFIG_AVFILTER | |
| int last_serial = -1; | |
| int64_t dec_channel_layout; | |
| int reconfigure; | |
| #endif | |
| int got_frame = 0; | |
| AVRational tb; | |
| int ret = 0; | |
| if (!frame) | |
| return AVERROR(ENOMEM); | |
| do { | |
| if ((got_frame = decoder_decode_frame(&is->auddec, frame, NULL)) < 0) | |
| goto the_end; | |
| if (got_frame) { | |
| tb = (AVRational){1, frame->sample_rate}; | |
| #if CONFIG_AVFILTER | |
| dec_channel_layout = get_valid_channel_layout(frame->channel_layout, frame->channels); | |
| reconfigure = | |
| cmp_audio_fmts(is->audio_filter_src.fmt, is->audio_filter_src.channels, | |
| frame->format, frame->channels) || | |
| is->audio_filter_src.channel_layout != dec_channel_layout || | |
| is->audio_filter_src.freq != frame->sample_rate || | |
| is->auddec.pkt_serial != last_serial; | |
| if (reconfigure) { | |
| char buf1[1024], buf2[1024]; | |
| av_get_channel_layout_string(buf1, sizeof(buf1), -1, is->audio_filter_src.channel_layout); | |
| av_get_channel_layout_string(buf2, sizeof(buf2), -1, dec_channel_layout); | |
| av_log(NULL, AV_LOG_DEBUG, | |
| "Audio frame changed from rate:%d ch:%d fmt:%s layout:%s serial:%d to rate:%d ch:%d fmt:%s layout:%s serial:%d\n", | |
| is->audio_filter_src.freq, is->audio_filter_src.channels, av_get_sample_fmt_name(is->audio_filter_src.fmt), buf1, last_serial, | |
| frame->sample_rate, frame->channels, av_get_sample_fmt_name(frame->format), buf2, is->auddec.pkt_serial); | |
| is->audio_filter_src.fmt = frame->format; | |
| is->audio_filter_src.channels = frame->channels; | |
| is->audio_filter_src.channel_layout = dec_channel_layout; | |
| is->audio_filter_src.freq = frame->sample_rate; | |
| last_serial = is->auddec.pkt_serial; | |
| if ((ret = configure_audio_filters(is, afilters, 1)) < 0) | |
| goto the_end; | |
| } | |
| if ((ret = av_buffersrc_add_frame(is->in_audio_filter, frame)) < 0) | |
| goto the_end; | |
| while ((ret = av_buffersink_get_frame_flags(is->out_audio_filter, frame, 0)) >= 0) { | |
| tb = av_buffersink_get_time_base(is->out_audio_filter); | |
| #endif | |
| if (!(af = frame_queue_peek_writable(&is->sampq))) | |
| goto the_end; | |
| af->pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb); | |
| af->pos = frame->pkt_pos; | |
| af->serial = is->auddec.pkt_serial; | |
| af->duration = av_q2d((AVRational){frame->nb_samples, frame->sample_rate}); | |
| av_frame_move_ref(af->frame, frame); | |
| frame_queue_push(&is->sampq); | |
| #if CONFIG_AVFILTER | |
| if (is->audioq.serial != is->auddec.pkt_serial) | |
| break; | |
| } | |
| if (ret == AVERROR_EOF) | |
| is->auddec.finished = is->auddec.pkt_serial; | |
| #endif | |
| } | |
| } while (ret >= 0 || ret == AVERROR(EAGAIN) || ret == AVERROR_EOF); | |
| the_end: | |
| #if CONFIG_AVFILTER | |
| avfilter_graph_free(&is->agraph); | |
| #endif | |
| av_frame_free(&frame); | |
| return ret; | |
| } | |
| static int decoder_start(Decoder *d, int (*fn)(void *), const char *thread_name, void* arg) | |
| { | |
| packet_queue_start(d->queue); | |
| d->decoder_tid = SDL_CreateThread(fn, thread_name, arg); | |
| if (!d->decoder_tid) { | |
| av_log(NULL, AV_LOG_ERROR, "SDL_CreateThread(): %s\n", SDL_GetError()); | |
| return AVERROR(ENOMEM); | |
| } | |
| return 0; | |
| } | |
| static int video_thread(void *arg) | |
| { | |
| VideoState *is = arg; | |
| AVFrame *frame = av_frame_alloc(); | |
| double pts; | |
| double duration; | |
| int ret; | |
| AVRational tb = is->video_st->time_base; | |
| AVRational frame_rate = av_guess_frame_rate(is->ic, is->video_st, NULL); | |
| #if CONFIG_AVFILTER | |
| AVFilterGraph *graph = NULL; | |
| AVFilterContext *filt_out = NULL, *filt_in = NULL; | |
| int last_w = 0; | |
| int last_h = 0; | |
| enum AVPixelFormat last_format = -2; | |
| int last_serial = -1; | |
| int last_vfilter_idx = 0; | |
| #endif | |
| if (!frame) | |
| return AVERROR(ENOMEM); | |
| for (;;) { | |
| ret = get_video_frame(is, frame); | |
| if (ret < 0) | |
| goto the_end; | |
| if (!ret) | |
| continue; | |
| #if CONFIG_AVFILTER | |
| if ( last_w != frame->width | |
| || last_h != frame->height | |
| || last_format != frame->format | |
| || last_serial != is->viddec.pkt_serial | |
| || last_vfilter_idx != is->vfilter_idx) { | |
| av_log(NULL, AV_LOG_DEBUG, | |
| "Video frame changed from size:%dx%d format:%s serial:%d to size:%dx%d format:%s serial:%d\n", | |
| last_w, last_h, | |
| (const char *)av_x_if_null(av_get_pix_fmt_name(last_format), "none"), last_serial, | |
| frame->width, frame->height, | |
| (const char *)av_x_if_null(av_get_pix_fmt_name(frame->format), "none"), is->viddec.pkt_serial); | |
| avfilter_graph_free(&graph); | |
| graph = avfilter_graph_alloc(); | |
| if (!graph) { | |
| ret = AVERROR(ENOMEM); | |
| goto the_end; | |
| } | |
| graph->nb_threads = filter_nbthreads; | |
| if ((ret = configure_video_filters(graph, is, vfilters_list ? vfilters_list[is->vfilter_idx] : NULL, frame)) < 0) { | |
| SDL_Event event; | |
| event.type = FF_QUIT_EVENT; | |
| event.user.data1 = is; | |
| SDL_PushEvent(&event); | |
| goto the_end; | |
| } | |
| filt_in = is->in_video_filter; | |
| filt_out = is->out_video_filter; | |
| last_w = frame->width; | |
| last_h = frame->height; | |
| last_format = frame->format; | |
| last_serial = is->viddec.pkt_serial; | |
| last_vfilter_idx = is->vfilter_idx; | |
| frame_rate = av_buffersink_get_frame_rate(filt_out); | |
| } | |
| ret = av_buffersrc_add_frame(filt_in, frame); | |
| if (ret < 0) | |
| goto the_end; | |
| while (ret >= 0) { | |
| is->frame_last_returned_time = av_gettime_relative() / 1000000.0; | |
| ret = av_buffersink_get_frame_flags(filt_out, frame, 0); | |
| if (ret < 0) { | |
| if (ret == AVERROR_EOF) | |
| is->viddec.finished = is->viddec.pkt_serial; | |
| ret = 0; | |
| break; | |
| } | |
| is->frame_last_filter_delay = av_gettime_relative() / 1000000.0 - is->frame_last_returned_time; | |
| if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0) | |
| is->frame_last_filter_delay = 0; | |
| tb = av_buffersink_get_time_base(filt_out); | |
| #endif | |
| duration = (frame_rate.num && frame_rate.den ? av_q2d((AVRational){frame_rate.den, frame_rate.num}) : 0); | |
| pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb); | |
| ret = queue_picture(is, frame, pts, duration, frame->pkt_pos, is->viddec.pkt_serial); | |
| av_frame_unref(frame); | |
| #if CONFIG_AVFILTER | |
| if (is->videoq.serial != is->viddec.pkt_serial) | |
| break; | |
| } | |
| #endif | |
| if (ret < 0) | |
| goto the_end; | |
| } | |
| the_end: | |
| #if CONFIG_AVFILTER | |
| avfilter_graph_free(&graph); | |
| #endif | |
| av_frame_free(&frame); | |
| return 0; | |
| } | |
| static int subtitle_thread(void *arg) | |
| { | |
| VideoState *is = arg; | |
| Frame *sp; | |
| int got_subtitle; | |
| double pts; | |
| for (;;) { | |
| if (!(sp = frame_queue_peek_writable(&is->subpq))) | |
| return 0; | |
| if ((got_subtitle = decoder_decode_frame(&is->subdec, NULL, &sp->sub)) < 0) | |
| break; | |
| pts = 0; | |
| if (got_subtitle && sp->sub.format == 0) { | |
| if (sp->sub.pts != AV_NOPTS_VALUE) | |
| pts = sp->sub.pts / (double)AV_TIME_BASE; | |
| sp->pts = pts; | |
| sp->serial = is->subdec.pkt_serial; | |
| sp->width = is->subdec.avctx->width; | |
| sp->height = is->subdec.avctx->height; | |
| sp->uploaded = 0; | |
| /* now we can update the picture count */ | |
| frame_queue_push(&is->subpq); | |
| } else if (got_subtitle) { | |
| avsubtitle_free(&sp->sub); | |
| } | |
| } | |
| return 0; | |
| } | |
| /* copy samples for viewing in editor window */ | |
| static void update_sample_display(VideoState *is, short *samples, int samples_size) | |
| { | |
| int size, len; | |
| size = samples_size / sizeof(short); | |
| while (size > 0) { | |
| len = SAMPLE_ARRAY_SIZE - is->sample_array_index; | |
| if (len > size) | |
| len = size; | |
| memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short)); | |
| samples += len; | |
| is->sample_array_index += len; | |
| if (is->sample_array_index >= SAMPLE_ARRAY_SIZE) | |
| is->sample_array_index = 0; | |
| size -= len; | |
| } | |
| } | |
| /* return the wanted number of samples to get better sync if sync_type is video | |
| * or external master clock */ | |
| static int synchronize_audio(VideoState *is, int nb_samples) | |
| { | |
| int wanted_nb_samples = nb_samples; | |
| /* if not master, then we try to remove or add samples to correct the clock */ | |
| if (get_master_sync_type(is) != AV_SYNC_AUDIO_MASTER) { | |
| double diff, avg_diff; | |
| int min_nb_samples, max_nb_samples; | |
| diff = get_clock(&is->audclk) - get_master_clock(is); | |
| if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) { | |
| is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum; | |
| if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) { | |
| /* not enough measures to have a correct estimate */ | |
| is->audio_diff_avg_count++; | |
| } else { | |
| /* estimate the A-V difference */ | |
| avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef); | |
| if (fabs(avg_diff) >= is->audio_diff_threshold) { | |
| wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq); | |
| min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100)); | |
| max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100)); | |
| wanted_nb_samples = av_clip(wanted_nb_samples, min_nb_samples, max_nb_samples); | |
| } | |
| av_log(NULL, AV_LOG_TRACE, "diff=%f adiff=%f sample_diff=%d apts=%0.3f %f\n", | |
| diff, avg_diff, wanted_nb_samples - nb_samples, | |
| is->audio_clock, is->audio_diff_threshold); | |
| } | |
| } else { | |
| /* too big difference : may be initial PTS errors, so | |
| reset A-V filter */ | |
| is->audio_diff_avg_count = 0; | |
| is->audio_diff_cum = 0; | |
| } | |
| } | |
| return wanted_nb_samples; | |
| } | |
| /** | |
| * Decode one audio frame and return its uncompressed size. | |
| * | |
| * The processed audio frame is decoded, converted if required, and | |
| * stored in is->audio_buf, with size in bytes given by the return | |
| * value. | |
| */ | |
| static int audio_decode_frame(VideoState *is) | |
| { | |
| int data_size, resampled_data_size; | |
| int64_t dec_channel_layout; | |
| av_unused double audio_clock0; | |
| int wanted_nb_samples; | |
| Frame *af; | |
| if (is->paused) | |
| return -1; | |
| do { | |
| #if defined(_WIN32) | |
| while (frame_queue_nb_remaining(&is->sampq) == 0) { | |
| if ((av_gettime_relative() - audio_callback_time) > 1000000LL * is->audio_hw_buf_size / is->audio_tgt.bytes_per_sec / 2) | |
| return -1; | |
| av_usleep (1000); | |
| } | |
| #endif | |
| if (!(af = frame_queue_peek_readable(&is->sampq))) | |
| return -1; | |
| frame_queue_next(&is->sampq); | |
| } while (af->serial != is->audioq.serial); | |
| data_size = av_samples_get_buffer_size(NULL, af->frame->channels, | |
| af->frame->nb_samples, | |
| af->frame->format, 1); | |
| dec_channel_layout = | |
| (af->frame->channel_layout && af->frame->channels == av_get_channel_layout_nb_channels(af->frame->channel_layout)) ? | |
| af->frame->channel_layout : av_get_default_channel_layout(af->frame->channels); | |
| wanted_nb_samples = synchronize_audio(is, af->frame->nb_samples); | |
| if (af->frame->format != is->audio_src.fmt || | |
| dec_channel_layout != is->audio_src.channel_layout || | |
| af->frame->sample_rate != is->audio_src.freq || | |
| (wanted_nb_samples != af->frame->nb_samples && !is->swr_ctx)) { | |
| swr_free(&is->swr_ctx); | |
| is->swr_ctx = swr_alloc_set_opts(NULL, | |
| is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq, | |
| dec_channel_layout, af->frame->format, af->frame->sample_rate, | |
| 0, NULL); | |
| if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) { | |
| av_log(NULL, AV_LOG_ERROR, | |
| "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n", | |
| af->frame->sample_rate, av_get_sample_fmt_name(af->frame->format), af->frame->channels, | |
| is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels); | |
| swr_free(&is->swr_ctx); | |
| return -1; | |
| } | |
| is->audio_src.channel_layout = dec_channel_layout; | |
| is->audio_src.channels = af->frame->channels; | |
| is->audio_src.freq = af->frame->sample_rate; | |
| is->audio_src.fmt = af->frame->format; | |
| } | |
| if (is->swr_ctx) { | |
| const uint8_t **in = (const uint8_t **)af->frame->extended_data; | |
| uint8_t **out = &is->audio_buf1; | |
| int out_count = (int64_t)wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate + 256; | |
| int out_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, out_count, is->audio_tgt.fmt, 0); | |
| int len2; | |
| if (out_size < 0) { | |
| av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size() failed\n"); | |
| return -1; | |
| } | |
| if (wanted_nb_samples != af->frame->nb_samples) { | |
| if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - af->frame->nb_samples) * is->audio_tgt.freq / af->frame->sample_rate, | |
| wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate) < 0) { | |
| av_log(NULL, AV_LOG_ERROR, "swr_set_compensation() failed\n"); | |
| return -1; | |
| } | |
| } | |
| av_fast_malloc(&is->audio_buf1, &is->audio_buf1_size, out_size); | |
| if (!is->audio_buf1) | |
| return AVERROR(ENOMEM); | |
| len2 = swr_convert(is->swr_ctx, out, out_count, in, af->frame->nb_samples); | |
| if (len2 < 0) { | |
| av_log(NULL, AV_LOG_ERROR, "swr_convert() failed\n"); | |
| return -1; | |
| } | |
| if (len2 == out_count) { | |
| av_log(NULL, AV_LOG_WARNING, "audio buffer is probably too small\n"); | |
| if (swr_init(is->swr_ctx) < 0) | |
| swr_free(&is->swr_ctx); | |
| } | |
| is->audio_buf = is->audio_buf1; | |
| resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt); | |
| } else { | |
| is->audio_buf = af->frame->data[0]; | |
| resampled_data_size = data_size; | |
| } | |
| audio_clock0 = is->audio_clock; | |
| /* update the audio clock with the pts */ | |
| if (!isnan(af->pts)) | |
| is->audio_clock = af->pts + (double) af->frame->nb_samples / af->frame->sample_rate; | |
| else | |
| is->audio_clock = NAN; | |
| is->audio_clock_serial = af->serial; | |
| #ifdef DEBUG | |
| { | |
| static double last_clock; | |
| printf("audio: delay=%0.3f clock=%0.3f clock0=%0.3f\n", | |
| is->audio_clock - last_clock, | |
| is->audio_clock, audio_clock0); | |
| last_clock = is->audio_clock; | |
| } | |
| #endif | |
| return resampled_data_size; | |
| } | |
| /* prepare a new audio buffer */ | |
| static void sdl_audio_callback(void *opaque, Uint8 *stream, int len) | |
| { | |
| VideoState *is = opaque; | |
| int audio_size, len1; | |
| audio_callback_time = av_gettime_relative(); | |
| while (len > 0) { | |
| if (is->audio_buf_index >= is->audio_buf_size) { | |
| audio_size = audio_decode_frame(is); | |
| if (audio_size < 0) { | |
| /* if error, just output silence */ | |
| is->audio_buf = NULL; | |
| is->audio_buf_size = SDL_AUDIO_MIN_BUFFER_SIZE / is->audio_tgt.frame_size * is->audio_tgt.frame_size; | |
| } else { | |
| if (is->show_mode != SHOW_MODE_VIDEO) | |
| update_sample_display(is, (int16_t *)is->audio_buf, audio_size); | |
| is->audio_buf_size = audio_size; | |
| } | |
| is->audio_buf_index = 0; | |
| } | |
| len1 = is->audio_buf_size - is->audio_buf_index; | |
| if (len1 > len) | |
| len1 = len; | |
| if (!is->muted && is->audio_buf && is->audio_volume == SDL_MIX_MAXVOLUME) | |
| memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1); | |
| else { | |
| memset(stream, 0, len1); | |
| if (!is->muted && is->audio_buf) | |
| SDL_MixAudioFormat(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, AUDIO_S16SYS, len1, is->audio_volume); | |
| } | |
| len -= len1; | |
| stream += len1; | |
| is->audio_buf_index += len1; | |
| } | |
| is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index; | |
| /* Let's assume the audio driver that is used by SDL has two periods. */ | |
| if (!isnan(is->audio_clock)) { | |
| set_clock_at(&is->audclk, is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / is->audio_tgt.bytes_per_sec, is->audio_clock_serial, audio_callback_time / 1000000.0); | |
| sync_clock_to_slave(&is->extclk, &is->audclk); | |
| } | |
| } | |
| static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params) | |
| { | |
| SDL_AudioSpec wanted_spec, spec; | |
| const char *env; | |
| static const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6}; | |
| static const int next_sample_rates[] = {0, 44100, 48000, 96000, 192000}; | |
| int next_sample_rate_idx = FF_ARRAY_ELEMS(next_sample_rates) - 1; | |
| env = SDL_getenv("SDL_AUDIO_CHANNELS"); | |
| if (env) { | |
| wanted_nb_channels = atoi(env); | |
| wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels); | |
| } | |
| if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) { | |
| wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels); | |
| wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX; | |
| } | |
| wanted_nb_channels = av_get_channel_layout_nb_channels(wanted_channel_layout); | |
| wanted_spec.channels = wanted_nb_channels; | |
| wanted_spec.freq = wanted_sample_rate; | |
| if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) { | |
| av_log(NULL, AV_LOG_ERROR, "Invalid sample rate or channel count!\n"); | |
| return -1; | |
| } | |
| while (next_sample_rate_idx && next_sample_rates[next_sample_rate_idx] >= wanted_spec.freq) | |
| next_sample_rate_idx--; | |
| wanted_spec.format = AUDIO_S16SYS; | |
| wanted_spec.silence = 0; | |
| wanted_spec.samples = FFMAX(SDL_AUDIO_MIN_BUFFER_SIZE, 2 << av_log2(wanted_spec.freq / SDL_AUDIO_MAX_CALLBACKS_PER_SEC)); | |
| wanted_spec.callback = sdl_audio_callback; | |
| wanted_spec.userdata = opaque; | |
| while (!(audio_dev = SDL_OpenAudioDevice(NULL, 0, &wanted_spec, &spec, SDL_AUDIO_ALLOW_FREQUENCY_CHANGE | SDL_AUDIO_ALLOW_CHANNELS_CHANGE))) { | |
| av_log(NULL, AV_LOG_WARNING, "SDL_OpenAudio (%d channels, %d Hz): %s\n", | |
| wanted_spec.channels, wanted_spec.freq, SDL_GetError()); | |
| wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)]; | |
| if (!wanted_spec.channels) { | |
| wanted_spec.freq = next_sample_rates[next_sample_rate_idx--]; | |
| wanted_spec.channels = wanted_nb_channels; | |
| if (!wanted_spec.freq) { | |
| av_log(NULL, AV_LOG_ERROR, | |
| "No more combinations to try, audio open failed\n"); | |
| return -1; | |
| } | |
| } | |
| wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels); | |
| } | |
| if (spec.format != AUDIO_S16SYS) { | |
| av_log(NULL, AV_LOG_ERROR, | |
| "SDL advised audio format %d is not supported!\n", spec.format); | |
| return -1; | |
| } | |
| if (spec.channels != wanted_spec.channels) { | |
| wanted_channel_layout = av_get_default_channel_layout(spec.channels); | |
| if (!wanted_channel_layout) { | |
| av_log(NULL, AV_LOG_ERROR, | |
| "SDL advised channel count %d is not supported!\n", spec.channels); | |
| return -1; | |
| } | |
| } | |
| audio_hw_params->fmt = AV_SAMPLE_FMT_S16; | |
| audio_hw_params->freq = spec.freq; | |
| audio_hw_params->channel_layout = wanted_channel_layout; | |
| audio_hw_params->channels = spec.channels; | |
| audio_hw_params->frame_size = av_samples_get_buffer_size(NULL, audio_hw_params->channels, 1, audio_hw_params->fmt, 1); | |
| audio_hw_params->bytes_per_sec = av_samples_get_buffer_size(NULL, audio_hw_params->channels, audio_hw_params->freq, audio_hw_params->fmt, 1); | |
| if (audio_hw_params->bytes_per_sec <= 0 || audio_hw_params->frame_size <= 0) { | |
| av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size failed\n"); | |
| return -1; | |
| } | |
| return spec.size; | |
| } | |
| /* open a given stream. Return 0 if OK */ | |
| static int stream_component_open(VideoState *is, int stream_index) | |
| { | |
| AVFormatContext *ic = is->ic; | |
| AVCodecContext *avctx; | |
| const AVCodec *codec; | |
| const char *forced_codec_name = NULL; | |
| AVDictionary *opts = NULL; | |
| AVDictionaryEntry *t = NULL; | |
| int sample_rate, nb_channels; | |
| int64_t channel_layout; | |
| int ret = 0; | |
| int stream_lowres = lowres; | |
| if (stream_index < 0 || stream_index >= ic->nb_streams) | |
| return -1; | |
| avctx = avcodec_alloc_context3(NULL); | |
| if (!avctx) | |
| return AVERROR(ENOMEM); | |
| ret = avcodec_parameters_to_context(avctx, ic->streams[stream_index]->codecpar); | |
| if (ret < 0) | |
| goto fail; | |
| avctx->pkt_timebase = ic->streams[stream_index]->time_base; | |
| codec = avcodec_find_decoder(avctx->codec_id); | |
| switch(avctx->codec_type){ | |
| case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; forced_codec_name = audio_codec_name; break; | |
| case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; forced_codec_name = subtitle_codec_name; break; | |
| case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; forced_codec_name = video_codec_name; break; | |
| } | |
| if (forced_codec_name) | |
| codec = avcodec_find_decoder_by_name(forced_codec_name); | |
| if (!codec) { | |
| if (forced_codec_name) av_log(NULL, AV_LOG_WARNING, | |
| "No codec could be found with name '%s'\n", forced_codec_name); | |
| else av_log(NULL, AV_LOG_WARNING, | |
| "No decoder could be found for codec %s\n", avcodec_get_name(avctx->codec_id)); | |
| ret = AVERROR(EINVAL); | |
| goto fail; | |
| } | |
| avctx->codec_id = codec->id; | |
| if (stream_lowres > codec->max_lowres) { | |
| av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n", | |
| codec->max_lowres); | |
| stream_lowres = codec->max_lowres; | |
| } | |
| avctx->lowres = stream_lowres; | |
| if (fast) | |
| avctx->flags2 |= AV_CODEC_FLAG2_FAST; | |
| opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec); | |
| if (!av_dict_get(opts, "threads", NULL, 0)) | |
| av_dict_set(&opts, "threads", "auto", 0); | |
| if (stream_lowres) | |
| av_dict_set_int(&opts, "lowres", stream_lowres, 0); | |
| if ((ret = avcodec_open2(avctx, codec, &opts)) < 0) { | |
| goto fail; | |
| } | |
| if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { | |
| av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); | |
| ret = AVERROR_OPTION_NOT_FOUND; | |
| goto fail; | |
| } | |
| is->eof = 0; | |
| ic->streams[stream_index]->discard = AVDISCARD_DEFAULT; | |
| switch (avctx->codec_type) { | |
| case AVMEDIA_TYPE_AUDIO: | |
| #if CONFIG_AVFILTER | |
| { | |
| AVFilterContext *sink; | |
| is->audio_filter_src.freq = avctx->sample_rate; | |
| is->audio_filter_src.channels = avctx->channels; | |
| is->audio_filter_src.channel_layout = get_valid_channel_layout(avctx->channel_layout, avctx->channels); | |
| is->audio_filter_src.fmt = avctx->sample_fmt; | |
| if ((ret = configure_audio_filters(is, afilters, 0)) < 0) | |
| goto fail; | |
| sink = is->out_audio_filter; | |
| sample_rate = av_buffersink_get_sample_rate(sink); | |
| nb_channels = av_buffersink_get_channels(sink); | |
| channel_layout = av_buffersink_get_channel_layout(sink); | |
| } | |
| #else | |
| sample_rate = avctx->sample_rate; | |
| nb_channels = avctx->channels; | |
| channel_layout = avctx->channel_layout; | |
| #endif | |
| /* prepare audio output */ | |
| if ((ret = audio_open(is, channel_layout, nb_channels, sample_rate, &is->audio_tgt)) < 0) | |
| goto fail; | |
| is->audio_hw_buf_size = ret; | |
| is->audio_src = is->audio_tgt; | |
| is->audio_buf_size = 0; | |
| is->audio_buf_index = 0; | |
| /* init averaging filter */ | |
| is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB); | |
| is->audio_diff_avg_count = 0; | |
| /* since we do not have a precise anough audio FIFO fullness, | |
| we correct audio sync only if larger than this threshold */ | |
| is->audio_diff_threshold = (double)(is->audio_hw_buf_size) / is->audio_tgt.bytes_per_sec; | |
| is->audio_stream = stream_index; | |
| is->audio_st = ic->streams[stream_index]; | |
| if ((ret = decoder_init(&is->auddec, avctx, &is->audioq, is->continue_read_thread)) < 0) | |
| goto fail; | |
| if ((is->ic->iformat->flags & (AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH | AVFMT_NO_BYTE_SEEK)) && !is->ic->iformat->read_seek) { | |
| is->auddec.start_pts = is->audio_st->start_time; | |
| is->auddec.start_pts_tb = is->audio_st->time_base; | |
| } | |
| if ((ret = decoder_start(&is->auddec, audio_thread, "audio_decoder", is)) < 0) | |
| goto out; | |
| SDL_PauseAudioDevice(audio_dev, 0); | |
| break; | |
| case AVMEDIA_TYPE_VIDEO: | |
| is->video_stream = stream_index; | |
| is->video_st = ic->streams[stream_index]; | |
| if ((ret = decoder_init(&is->viddec, avctx, &is->videoq, is->continue_read_thread)) < 0) | |
| goto fail; | |
| if ((ret = decoder_start(&is->viddec, video_thread, "video_decoder", is)) < 0) | |
| goto out; | |
| is->queue_attachments_req = 1; | |
| break; | |
| case AVMEDIA_TYPE_SUBTITLE: | |
| is->subtitle_stream = stream_index; | |
| is->subtitle_st = ic->streams[stream_index]; | |
| if ((ret = decoder_init(&is->subdec, avctx, &is->subtitleq, is->continue_read_thread)) < 0) | |
| goto fail; | |
| if ((ret = decoder_start(&is->subdec, subtitle_thread, "subtitle_decoder", is)) < 0) | |
| goto out; | |
| break; | |
| default: | |
| break; | |
| } | |
| goto out; | |
| fail: | |
| avcodec_free_context(&avctx); | |
| out: | |
| av_dict_free(&opts); | |
| return ret; | |
| } | |
| static int decode_interrupt_cb(void *ctx) | |
| { | |
| VideoState *is = ctx; | |
| return is->abort_request; | |
| } | |
| static int stream_has_enough_packets(AVStream *st, int stream_id, PacketQueue *queue) { | |
| return stream_id < 0 || | |
| queue->abort_request || | |
| (st->disposition & AV_DISPOSITION_ATTACHED_PIC) || | |
| queue->nb_packets > MIN_FRAMES && (!queue->duration || av_q2d(st->time_base) * queue->duration > 1.0); | |
| } | |
| static int is_realtime(AVFormatContext *s) | |
| { | |
| if( !strcmp(s->iformat->name, "rtp") | |
| || !strcmp(s->iformat->name, "rtsp") | |
| || !strcmp(s->iformat->name, "sdp") | |
| ) | |
| return 1; | |
| if(s->pb && ( !strncmp(s->url, "rtp:", 4) | |
| || !strncmp(s->url, "udp:", 4) | |
| ) | |
| ) | |
| return 1; | |
| return 0; | |
| } | |
| /* this thread gets the stream from the disk or the network */ | |
| static int read_thread(void *arg) | |
| { | |
| VideoState *is = arg; | |
| AVFormatContext *ic = NULL; | |
| int err, i, ret; | |
| int st_index[AVMEDIA_TYPE_NB]; | |
| AVPacket *pkt = NULL; | |
| int64_t stream_start_time; | |
| int pkt_in_play_range = 0; | |
| AVDictionaryEntry *t; | |
| SDL_mutex *wait_mutex = SDL_CreateMutex(); | |
| int scan_all_pmts_set = 0; | |
| int64_t pkt_ts; | |
| if (!wait_mutex) { | |
| av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError()); | |
| ret = AVERROR(ENOMEM); | |
| goto fail; | |
| } | |
| memset(st_index, -1, sizeof(st_index)); | |
| is->eof = 0; | |
| pkt = av_packet_alloc(); | |
| if (!pkt) { | |
| av_log(NULL, AV_LOG_FATAL, "Could not allocate packet.\n"); | |
| ret = AVERROR(ENOMEM); | |
| goto fail; | |
| } | |
| ic = avformat_alloc_context(); | |
| if (!ic) { | |
| av_log(NULL, AV_LOG_FATAL, "Could not allocate context.\n"); | |
| ret = AVERROR(ENOMEM); | |
| goto fail; | |
| } | |
| ic->interrupt_callback.callback = decode_interrupt_cb; | |
| ic->interrupt_callback.opaque = is; | |
| if (!av_dict_get(format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) { | |
| av_dict_set(&format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE); | |
| scan_all_pmts_set = 1; | |
| } | |
| err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts); | |
| if (err < 0) { | |
| print_error(is->filename, err); | |
| ret = -1; | |
| goto fail; | |
| } | |
| if (scan_all_pmts_set) | |
| av_dict_set(&format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE); | |
| if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { | |
| av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); | |
| ret = AVERROR_OPTION_NOT_FOUND; | |
| goto fail; | |
| } | |
| is->ic = ic; | |
| if (genpts) | |
| ic->flags |= AVFMT_FLAG_GENPTS; | |
| av_format_inject_global_side_data(ic); | |
| if (find_stream_info) { | |
| AVDictionary **opts = setup_find_stream_info_opts(ic, codec_opts); | |
| int orig_nb_streams = ic->nb_streams; | |
| err = avformat_find_stream_info(ic, opts); | |
| for (i = 0; i < orig_nb_streams; i++) | |
| av_dict_free(&opts[i]); | |
| av_freep(&opts); | |
| if (err < 0) { | |
| av_log(NULL, AV_LOG_WARNING, | |
| "%s: could not find codec parameters\n", is->filename); | |
| ret = -1; | |
| goto fail; | |
| } | |
| } | |
| if (ic->pb) | |
| ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use avio_feof() to test for the end | |
| if (seek_by_bytes < 0) | |
| seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT) && strcmp("ogg", ic->iformat->name); | |
| is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0; | |
| if (!window_title && (t = av_dict_get(ic->metadata, "title", NULL, 0))) | |
| window_title = av_asprintf("%s - %s", t->value, input_filename); | |
| /* if seeking requested, we execute it */ | |
| if (start_time != AV_NOPTS_VALUE) { | |
| int64_t timestamp; | |
| timestamp = start_time; | |
| /* add the stream start time */ | |
| if (ic->start_time != AV_NOPTS_VALUE) | |
| timestamp += ic->start_time; | |
| ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0); | |
| if (ret < 0) { | |
| av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n", | |
| is->filename, (double)timestamp / AV_TIME_BASE); | |
| } | |
| } | |
| is->realtime = is_realtime(ic); | |
| if (show_status) | |
| av_dump_format(ic, 0, is->filename, 0); | |
| for (i = 0; i < ic->nb_streams; i++) { | |
| AVStream *st = ic->streams[i]; | |
| enum AVMediaType type = st->codecpar->codec_type; | |
| st->discard = AVDISCARD_ALL; | |
| if (type >= 0 && wanted_stream_spec[type] && st_index[type] == -1) | |
| if (avformat_match_stream_specifier(ic, st, wanted_stream_spec[type]) > 0) | |
| st_index[type] = i; | |
| } | |
| for (i = 0; i < AVMEDIA_TYPE_NB; i++) { | |
| if (wanted_stream_spec[i] && st_index[i] == -1) { | |
| av_log(NULL, AV_LOG_ERROR, "Stream specifier %s does not match any %s stream\n", wanted_stream_spec[i], av_get_media_type_string(i)); | |
| st_index[i] = INT_MAX; | |
| } | |
| } | |
| if (!video_disable) | |
| st_index[AVMEDIA_TYPE_VIDEO] = | |
| av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO, | |
| st_index[AVMEDIA_TYPE_VIDEO], -1, NULL, 0); | |
| if (!audio_disable) | |
| st_index[AVMEDIA_TYPE_AUDIO] = | |
| av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO, | |
| st_index[AVMEDIA_TYPE_AUDIO], | |
| st_index[AVMEDIA_TYPE_VIDEO], | |
| NULL, 0); | |
| if (!video_disable && !subtitle_disable) | |
| st_index[AVMEDIA_TYPE_SUBTITLE] = | |
| av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE, | |
| st_index[AVMEDIA_TYPE_SUBTITLE], | |
| (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ? | |
| st_index[AVMEDIA_TYPE_AUDIO] : | |
| st_index[AVMEDIA_TYPE_VIDEO]), | |
| NULL, 0); | |
| is->show_mode = show_mode; | |
| if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { | |
| AVStream *st = ic->streams[st_index[AVMEDIA_TYPE_VIDEO]]; | |
| AVCodecParameters *codecpar = st->codecpar; | |
| AVRational sar = av_guess_sample_aspect_ratio(ic, st, NULL); | |
| if (codecpar->width) | |
| set_default_window_size(codecpar->width, codecpar->height, sar); | |
| } | |
| /* open the streams */ | |
| if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) { | |
| stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]); | |
| } | |
| ret = -1; | |
| if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { | |
| ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]); | |
| } | |
| if (is->show_mode == SHOW_MODE_NONE) | |
| is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT; | |
| if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) { | |
| stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]); | |
| } | |
| if (is->video_stream < 0 && is->audio_stream < 0) { | |
| av_log(NULL, AV_LOG_FATAL, "Failed to open file '%s' or configure filtergraph\n", | |
| is->filename); | |
| ret = -1; | |
| goto fail; | |
| } | |
| if (infinite_buffer < 0 && is->realtime) | |
| infinite_buffer = 1; | |
| for (;;) { | |
| if (is->abort_request) | |
| break; | |
| if (is->paused != is->last_paused) { | |
| is->last_paused = is->paused; | |
| if (is->paused) | |
| is->read_pause_return = av_read_pause(ic); | |
| else | |
| av_read_play(ic); | |
| } | |
| #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL | |
| if (is->paused && | |
| (!strcmp(ic->iformat->name, "rtsp") || | |
| (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) { | |
| /* wait 10 ms to avoid trying to get another packet */ | |
| /* XXX: horrible */ | |
| SDL_Delay(10); | |
| continue; | |
| } | |
| #endif | |
| if (is->seek_req) { | |
| int64_t seek_target = is->seek_pos; | |
| int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN; | |
| int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX; | |
| // FIXME the +-2 is due to rounding being not done in the correct direction in generation | |
| // of the seek_pos/seek_rel variables | |
| ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags); | |
| if (ret < 0) { | |
| av_log(NULL, AV_LOG_ERROR, | |
| "%s: error while seeking\n", is->ic->url); | |
| } else { | |
| if (is->audio_stream >= 0) | |
| packet_queue_flush(&is->audioq); | |
| if (is->subtitle_stream >= 0) | |
| packet_queue_flush(&is->subtitleq); | |
| if (is->video_stream >= 0) | |
| packet_queue_flush(&is->videoq); | |
| if (is->seek_flags & AVSEEK_FLAG_BYTE) { | |
| set_clock(&is->extclk, NAN, 0); | |
| } else { | |
| set_clock(&is->extclk, seek_target / (double)AV_TIME_BASE, 0); | |
| } | |
| } | |
| is->seek_req = 0; | |
| is->queue_attachments_req = 1; | |
| is->eof = 0; | |
| if (is->paused) | |
| step_to_next_frame(is); | |
| } | |
| if (is->queue_attachments_req) { | |
| if (is->video_st && is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC) { | |
| if ((ret = av_packet_ref(pkt, &is->video_st->attached_pic)) < 0) | |
| goto fail; | |
| packet_queue_put(&is->videoq, pkt); | |
| packet_queue_put_nullpacket(&is->videoq, pkt, is->video_stream); | |
| } | |
| is->queue_attachments_req = 0; | |
| } | |
| /* if the queue are full, no need to read more */ | |
| if (infinite_buffer<1 && | |
| (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE | |
| || (stream_has_enough_packets(is->audio_st, is->audio_stream, &is->audioq) && | |
| stream_has_enough_packets(is->video_st, is->video_stream, &is->videoq) && | |
| stream_has_enough_packets(is->subtitle_st, is->subtitle_stream, &is->subtitleq)))) { | |
| /* wait 10 ms */ | |
| SDL_LockMutex(wait_mutex); | |
| SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10); | |
| SDL_UnlockMutex(wait_mutex); | |
| continue; | |
| } | |
| if (!is->paused && | |
| (!is->audio_st || (is->auddec.finished == is->audioq.serial && frame_queue_nb_remaining(&is->sampq) == 0)) && | |
| (!is->video_st || (is->viddec.finished == is->videoq.serial && frame_queue_nb_remaining(&is->pictq) == 0))) { | |
| if (loop != 1 && (!loop || --loop)) { | |
| stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0); | |
| } else if (autoexit) { | |
| ret = AVERROR_EOF; | |
| goto fail; | |
| } | |
| } | |
| ret = av_read_frame(ic, pkt); | |
| if (ret < 0) { | |
| if ((ret == AVERROR_EOF || avio_feof(ic->pb)) && !is->eof) { | |
| if (is->video_stream >= 0) | |
| packet_queue_put_nullpacket(&is->videoq, pkt, is->video_stream); | |
| if (is->audio_stream >= 0) | |
| packet_queue_put_nullpacket(&is->audioq, pkt, is->audio_stream); | |
| if (is->subtitle_stream >= 0) | |
| packet_queue_put_nullpacket(&is->subtitleq, pkt, is->subtitle_stream); | |
| is->eof = 1; | |
| } | |
| if (ic->pb && ic->pb->error) { | |
| if (autoexit) | |
| goto fail; | |
| else | |
| break; | |
| } | |
| SDL_LockMutex(wait_mutex); | |
| SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10); | |
| SDL_UnlockMutex(wait_mutex); | |
| continue; | |
| } else { | |
| is->eof = 0; | |
| } | |
| /* check if packet is in play range specified by user, then queue, otherwise discard */ | |
| stream_start_time = ic->streams[pkt->stream_index]->start_time; | |
| pkt_ts = pkt->pts == AV_NOPTS_VALUE ? pkt->dts : pkt->pts; | |
| pkt_in_play_range = duration == AV_NOPTS_VALUE || | |
| (pkt_ts - (stream_start_time != AV_NOPTS_VALUE ? stream_start_time : 0)) * | |
| av_q2d(ic->streams[pkt->stream_index]->time_base) - | |
| (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000 | |
| <= ((double)duration / 1000000); | |
| if (pkt->stream_index == is->audio_stream && pkt_in_play_range) { | |
| packet_queue_put(&is->audioq, pkt); | |
| } else if (pkt->stream_index == is->video_stream && pkt_in_play_range | |
| && !(is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) { | |
| packet_queue_put(&is->videoq, pkt); | |
| } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) { | |
| packet_queue_put(&is->subtitleq, pkt); | |
| } else { | |
| av_packet_unref(pkt); | |
| } | |
| } | |
| ret = 0; | |
| fail: | |
| if (ic && !is->ic) | |
| avformat_close_input(&ic); | |
| av_packet_free(&pkt); | |
| if (ret != 0) { | |
| SDL_Event event; | |
| event.type = FF_QUIT_EVENT; | |
| event.user.data1 = is; | |
| SDL_PushEvent(&event); | |
| } | |
| SDL_DestroyMutex(wait_mutex); | |
| return 0; | |
| } | |
| static VideoState *stream_open(const char *filename, AVInputFormat *iformat) | |
| { | |
| VideoState *is; | |
| is = av_mallocz(sizeof(VideoState)); | |
| if (!is) | |
| return NULL; | |
| is->last_video_stream = is->video_stream = -1; | |
| is->last_audio_stream = is->audio_stream = -1; | |
| is->last_subtitle_stream = is->subtitle_stream = -1; | |
| is->filename = av_strdup(filename); | |
| if (!is->filename) | |
| goto fail; | |
| is->iformat = iformat; | |
| is->ytop = 0; | |
| is->xleft = 0; | |
| /* start video display */ | |
| if (frame_queue_init(&is->pictq, &is->videoq, VIDEO_PICTURE_QUEUE_SIZE, 1) < 0) | |
| goto fail; | |
| if (frame_queue_init(&is->subpq, &is->subtitleq, SUBPICTURE_QUEUE_SIZE, 0) < 0) | |
| goto fail; | |
| if (frame_queue_init(&is->sampq, &is->audioq, SAMPLE_QUEUE_SIZE, 1) < 0) | |
| goto fail; | |
| if (packet_queue_init(&is->videoq) < 0 || | |
| packet_queue_init(&is->audioq) < 0 || | |
| packet_queue_init(&is->subtitleq) < 0) | |
| goto fail; | |
| if (!(is->continue_read_thread = SDL_CreateCond())) { | |
| av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError()); | |
| goto fail; | |
| } | |
| init_clock(&is->vidclk, &is->videoq.serial); | |
| init_clock(&is->audclk, &is->audioq.serial); | |
| init_clock(&is->extclk, &is->extclk.serial); | |
| is->audio_clock_serial = -1; | |
| if (startup_volume < 0) | |
| av_log(NULL, AV_LOG_WARNING, "-volume=%d < 0, setting to 0\n", startup_volume); | |
| if (startup_volume > 100) | |
| av_log(NULL, AV_LOG_WARNING, "-volume=%d > 100, setting to 100\n", startup_volume); | |
| startup_volume = av_clip(startup_volume, 0, 100); | |
| startup_volume = av_clip(SDL_MIX_MAXVOLUME * startup_volume / 100, 0, SDL_MIX_MAXVOLUME); | |
| is->audio_volume = startup_volume; | |
| is->muted = 0; | |
| is->av_sync_type = av_sync_type; | |
| is->read_tid = SDL_CreateThread(read_thread, "read_thread", is); | |
| if (!is->read_tid) { | |
| av_log(NULL, AV_LOG_FATAL, "SDL_CreateThread(): %s\n", SDL_GetError()); | |
| fail: | |
| stream_close(is); | |
| return NULL; | |
| } | |
| return is; | |
| } | |
| static void stream_cycle_channel(VideoState *is, int codec_type) | |
| { | |
| AVFormatContext *ic = is->ic; | |
| int start_index, stream_index; | |
| int old_index; | |
| AVStream *st; | |
| AVProgram *p = NULL; | |
| int nb_streams = is->ic->nb_streams; | |
| if (codec_type == AVMEDIA_TYPE_VIDEO) { | |
| start_index = is->last_video_stream; | |
| old_index = is->video_stream; | |
| } else if (codec_type == AVMEDIA_TYPE_AUDIO) { | |
| start_index = is->last_audio_stream; | |
| old_index = is->audio_stream; | |
| } else { | |
| start_index = is->last_subtitle_stream; | |
| old_index = is->subtitle_stream; | |
| } | |
| stream_index = start_index; | |
| if (codec_type != AVMEDIA_TYPE_VIDEO && is->video_stream != -1) { | |
| p = av_find_program_from_stream(ic, NULL, is->video_stream); | |
| if (p) { | |
| nb_streams = p->nb_stream_indexes; | |
| for (start_index = 0; start_index < nb_streams; start_index++) | |
| if (p->stream_index[start_index] == stream_index) | |
| break; | |
| if (start_index == nb_streams) | |
| start_index = -1; | |
| stream_index = start_index; | |
| } | |
| } | |
| for (;;) { | |
| if (++stream_index >= nb_streams) | |
| { | |
| if (codec_type == AVMEDIA_TYPE_SUBTITLE) | |
| { | |
| stream_index = -1; | |
| is->last_subtitle_stream = -1; | |
| goto the_end; | |
| } | |
| if (start_index == -1) | |
| return; | |
| stream_index = 0; | |
| } | |
| if (stream_index == start_index) | |
| return; | |
| st = is->ic->streams[p ? p->stream_index[stream_index] : stream_index]; | |
| if (st->codecpar->codec_type == codec_type) { | |
| /* check that parameters are OK */ | |
| switch (codec_type) { | |
| case AVMEDIA_TYPE_AUDIO: | |
| if (st->codecpar->sample_rate != 0 && | |
| st->codecpar->channels != 0) | |
| goto the_end; | |
| break; | |
| case AVMEDIA_TYPE_VIDEO: | |
| case AVMEDIA_TYPE_SUBTITLE: | |
| goto the_end; | |
| default: | |
| break; | |
| } | |
| } | |
| } | |
| the_end: | |
| if (p && stream_index != -1) | |
| stream_index = p->stream_index[stream_index]; | |
| av_log(NULL, AV_LOG_INFO, "Switch %s stream from #%d to #%d\n", | |
| av_get_media_type_string(codec_type), | |
| old_index, | |
| stream_index); | |
| stream_component_close(is, old_index); | |
| stream_component_open(is, stream_index); | |
| } | |
| static void toggle_full_screen(VideoState *is) | |
| { | |
| is_full_screen = !is_full_screen; | |
| SDL_SetWindowFullscreen(window, is_full_screen ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0); | |
| } | |
| static void toggle_audio_display(VideoState *is) | |
| { | |
| int next = is->show_mode; | |
| do { | |
| next = (next + 1) % SHOW_MODE_NB; | |
| } while (next != is->show_mode && (next == SHOW_MODE_VIDEO && !is->video_st || next != SHOW_MODE_VIDEO && !is->audio_st)); | |
| if (is->show_mode != next) { | |
| is->force_refresh = 1; | |
| is->show_mode = next; | |
| } | |
| } | |
| static void refresh_loop_wait_event(VideoState *is, SDL_Event *event) { | |
| double remaining_time = 0.0; | |
| SDL_PumpEvents(); | |
| while (!SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT)) { | |
| if (!cursor_hidden && av_gettime_relative() - cursor_last_shown > CURSOR_HIDE_DELAY) { | |
| SDL_ShowCursor(0); | |
| cursor_hidden = 1; | |
| } | |
| if (remaining_time > 0.0) | |
| av_usleep((int64_t)(remaining_time * 1000000.0)); | |
| remaining_time = REFRESH_RATE; | |
| if (is->show_mode != SHOW_MODE_NONE && (!is->paused || is->force_refresh)) | |
| video_refresh(is, &remaining_time); | |
| SDL_PumpEvents(); | |
| } | |
| } | |
| static void seek_chapter(VideoState *is, int incr) | |
| { | |
| int64_t pos = get_master_clock(is) * AV_TIME_BASE; | |
| int i; | |
| if (!is->ic->nb_chapters) | |
| return; | |
| /* find the current chapter */ | |
| for (i = 0; i < is->ic->nb_chapters; i++) { | |
| AVChapter *ch = is->ic->chapters[i]; | |
| if (av_compare_ts(pos, AV_TIME_BASE_Q, ch->start, ch->time_base) < 0) { | |
| i--; | |
| break; | |
| } | |
| } | |
| i += incr; | |
| i = FFMAX(i, 0); | |
| if (i >= is->ic->nb_chapters) | |
| return; | |
| av_log(NULL, AV_LOG_VERBOSE, "Seeking to chapter %d.\n", i); | |
| stream_seek(is, av_rescale_q(is->ic->chapters[i]->start, is->ic->chapters[i]->time_base, | |
| AV_TIME_BASE_Q), 0, 0); | |
| } | |
| /* handle an event sent by the GUI */ | |
| static void event_loop(VideoState *cur_stream) | |
| { | |
| SDL_Event event; | |
| double incr, pos, frac; | |
| for (;;) { | |
| double x; | |
| refresh_loop_wait_event(cur_stream, &event); | |
| switch (event.type) { | |
| case SDL_KEYDOWN: | |
| if (exit_on_keydown || event.key.keysym.sym == SDLK_ESCAPE || event.key.keysym.sym == SDLK_q) { | |
| do_exit(cur_stream); | |
| break; | |
| } | |
| // If we don't yet have a window, skip all key events, because read_thread might still be initializing... | |
| if (!cur_stream->width) | |
| continue; | |
| switch (event.key.keysym.sym) { | |
| case SDLK_f: | |
| toggle_full_screen(cur_stream); | |
| cur_stream->force_refresh = 1; | |
| break; | |
| case SDLK_p: | |
| case SDLK_SPACE: | |
| toggle_pause(cur_stream); | |
| break; | |
| case SDLK_m: | |
| toggle_mute(cur_stream); | |
| break; | |
| case SDLK_KP_MULTIPLY: | |
| case SDLK_0: | |
| update_volume(cur_stream, 1, SDL_VOLUME_STEP); | |
| break; | |
| case SDLK_KP_DIVIDE: | |
| case SDLK_9: | |
| update_volume(cur_stream, -1, SDL_VOLUME_STEP); | |
| break; | |
| case SDLK_s: // S: Step to next frame | |
| step_to_next_frame(cur_stream); | |
| break; | |
| case SDLK_a: | |
| stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO); | |
| break; | |
| case SDLK_v: | |
| stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO); | |
| break; | |
| case SDLK_c: | |
| stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO); | |
| stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO); | |
| stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE); | |
| break; | |
| case SDLK_t: | |
| stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE); | |
| break; | |
| case SDLK_w: | |
| #if CONFIG_AVFILTER | |
| if (cur_stream->show_mode == SHOW_MODE_VIDEO && cur_stream->vfilter_idx < nb_vfilters - 1) { | |
| if (++cur_stream->vfilter_idx >= nb_vfilters) | |
| cur_stream->vfilter_idx = 0; | |
| } else { | |
| cur_stream->vfilter_idx = 0; | |
| toggle_audio_display(cur_stream); | |
| } | |
| #else | |
| toggle_audio_display(cur_stream); | |
| #endif | |
| break; | |
| case SDLK_PAGEUP: | |
| if (cur_stream->ic->nb_chapters <= 1) { | |
| incr = 600.0; | |
| goto do_seek; | |
| } | |
| seek_chapter(cur_stream, 1); | |
| break; | |
| case SDLK_PAGEDOWN: | |
| if (cur_stream->ic->nb_chapters <= 1) { | |
| incr = -600.0; | |
| goto do_seek; | |
| } | |
| seek_chapter(cur_stream, -1); | |
| break; | |
| case SDLK_LEFT: | |
| incr = seek_interval ? -seek_interval : -10.0; | |
| goto do_seek; | |
| case SDLK_RIGHT: | |
| incr = seek_interval ? seek_interval : 10.0; | |
| goto do_seek; | |
| case SDLK_UP: | |
| incr = 60.0; | |
| goto do_seek; | |
| case SDLK_DOWN: | |
| incr = -60.0; | |
| do_seek: | |
| if (seek_by_bytes) { | |
| pos = -1; | |
| if (pos < 0 && cur_stream->video_stream >= 0) | |
| pos = frame_queue_last_pos(&cur_stream->pictq); | |
| if (pos < 0 && cur_stream->audio_stream >= 0) | |
| pos = frame_queue_last_pos(&cur_stream->sampq); | |
| if (pos < 0) | |
| pos = avio_tell(cur_stream->ic->pb); | |
| if (cur_stream->ic->bit_rate) | |
| incr *= cur_stream->ic->bit_rate / 8.0; | |
| else | |
| incr *= 180000.0; | |
| pos += incr; | |
| stream_seek(cur_stream, pos, incr, 1); | |
| } else { | |
| pos = get_master_clock(cur_stream); | |
| if (isnan(pos)) | |
| pos = (double)cur_stream->seek_pos / AV_TIME_BASE; | |
| pos += incr; | |
| if (cur_stream->ic->start_time != AV_NOPTS_VALUE && pos < cur_stream->ic->start_time / (double)AV_TIME_BASE) | |
| pos = cur_stream->ic->start_time / (double)AV_TIME_BASE; | |
| stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0); | |
| } | |
| break; | |
| default: | |
| break; | |
| } | |
| break; | |
| case SDL_MOUSEBUTTONDOWN: | |
| if (exit_on_mousedown) { | |
| do_exit(cur_stream); | |
| break; | |
| } | |
| if (event.button.button == SDL_BUTTON_LEFT) { | |
| static int64_t last_mouse_left_click = 0; | |
| if (av_gettime_relative() - last_mouse_left_click <= 500000) { | |
| toggle_full_screen(cur_stream); | |
| cur_stream->force_refresh = 1; | |
| last_mouse_left_click = 0; | |
| } else { | |
| last_mouse_left_click = av_gettime_relative(); | |
| } | |
| } | |
| case SDL_MOUSEMOTION: | |
| if (cursor_hidden) { | |
| SDL_ShowCursor(1); | |
| cursor_hidden = 0; | |
| } | |
| cursor_last_shown = av_gettime_relative(); | |
| if (event.type == SDL_MOUSEBUTTONDOWN) { | |
| if (event.button.button != SDL_BUTTON_RIGHT) | |
| break; | |
| x = event.button.x; | |
| } else { | |
| if (!(event.motion.state & SDL_BUTTON_RMASK)) | |
| break; | |
| x = event.motion.x; | |
| } | |
| if (seek_by_bytes || cur_stream->ic->duration <= 0) { | |
| uint64_t size = avio_size(cur_stream->ic->pb); | |
| stream_seek(cur_stream, size*x/cur_stream->width, 0, 1); | |
| } else { | |
| int64_t ts; | |
| int ns, hh, mm, ss; | |
| int tns, thh, tmm, tss; | |
| tns = cur_stream->ic->duration / 1000000LL; | |
| thh = tns / 3600; | |
| tmm = (tns % 3600) / 60; | |
| tss = (tns % 60); | |
| frac = x / cur_stream->width; | |
| ns = frac * tns; | |
| hh = ns / 3600; | |
| mm = (ns % 3600) / 60; | |
| ss = (ns % 60); | |
| av_log(NULL, AV_LOG_INFO, | |
| "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100, | |
| hh, mm, ss, thh, tmm, tss); | |
| ts = frac * cur_stream->ic->duration; | |
| if (cur_stream->ic->start_time != AV_NOPTS_VALUE) | |
| ts += cur_stream->ic->start_time; | |
| stream_seek(cur_stream, ts, 0, 0); | |
| } | |
| break; | |
| case SDL_WINDOWEVENT: | |
| switch (event.window.event) { | |
| case SDL_WINDOWEVENT_SIZE_CHANGED: | |
| screen_width = cur_stream->width = event.window.data1; | |
| screen_height = cur_stream->height = event.window.data2; | |
| if (cur_stream->vis_texture) { | |
| SDL_DestroyTexture(cur_stream->vis_texture); | |
| cur_stream->vis_texture = NULL; | |
| } | |
| case SDL_WINDOWEVENT_EXPOSED: | |
| cur_stream->force_refresh = 1; | |
| } | |
| break; | |
| case SDL_QUIT: | |
| case FF_QUIT_EVENT: | |
| do_exit(cur_stream); | |
| break; | |
| default: | |
| break; | |
| } | |
| } | |
| } | |
| static int opt_frame_size(void *optctx, const char *opt, const char *arg) | |
| { | |
| av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n"); | |
| return opt_default(NULL, "video_size", arg); | |
| } | |
| static int opt_width(void *optctx, const char *opt, const char *arg) | |
| { | |
| screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); | |
| return 0; | |
| } | |
| static int opt_height(void *optctx, const char *opt, const char *arg) | |
| { | |
| screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); | |
| return 0; | |
| } | |
| static int opt_format(void *optctx, const char *opt, const char *arg) | |
| { | |
| file_iformat = av_find_input_format(arg); | |
| if (!file_iformat) { | |
| av_log(NULL, AV_LOG_FATAL, "Unknown input format: %s\n", arg); | |
| return AVERROR(EINVAL); | |
| } | |
| return 0; | |
| } | |
| static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg) | |
| { | |
| av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n"); | |
| return opt_default(NULL, "pixel_format", arg); | |
| } | |
| static int opt_sync(void *optctx, const char *opt, const char *arg) | |
| { | |
| if (!strcmp(arg, "audio")) | |
| av_sync_type = AV_SYNC_AUDIO_MASTER; | |
| else if (!strcmp(arg, "video")) | |
| av_sync_type = AV_SYNC_VIDEO_MASTER; | |
| else if (!strcmp(arg, "ext")) | |
| av_sync_type = AV_SYNC_EXTERNAL_CLOCK; | |
| else { | |
| av_log(NULL, AV_LOG_ERROR, "Unknown value for %s: %s\n", opt, arg); | |
| exit(1); | |
| } | |
| return 0; | |
| } | |
| static int opt_seek(void *optctx, const char *opt, const char *arg) | |
| { | |
| start_time = parse_time_or_die(opt, arg, 1); | |
| return 0; | |
| } | |
| static int opt_duration(void *optctx, const char *opt, const char *arg) | |
| { | |
| duration = parse_time_or_die(opt, arg, 1); | |
| return 0; | |
| } | |
| static int opt_show_mode(void *optctx, const char *opt, const char *arg) | |
| { | |
| show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO : | |
| !strcmp(arg, "waves") ? SHOW_MODE_WAVES : | |
| !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT : | |
| parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1); | |
| return 0; | |
| } | |
| static void opt_input_file(void *optctx, const char *filename) | |
| { | |
| if (input_filename) { | |
| av_log(NULL, AV_LOG_FATAL, | |
| "Argument '%s' provided as input filename, but '%s' was already specified.\n", | |
| filename, input_filename); | |
| exit(1); | |
| } | |
| if (!strcmp(filename, "-")) | |
| filename = "pipe:"; | |
| input_filename = filename; | |
| } | |
| static int opt_codec(void *optctx, const char *opt, const char *arg) | |
| { | |
| const char *spec = strchr(opt, ':'); | |
| if (!spec) { | |
| av_log(NULL, AV_LOG_ERROR, | |
| "No media specifier was specified in '%s' in option '%s'\n", | |
| arg, opt); | |
| return AVERROR(EINVAL); | |
| } | |
| spec++; | |
| switch (spec[0]) { | |
| case 'a' : audio_codec_name = arg; break; | |
| case 's' : subtitle_codec_name = arg; break; | |
| case 'v' : video_codec_name = arg; break; | |
| default: | |
| av_log(NULL, AV_LOG_ERROR, | |
| "Invalid media specifier '%s' in option '%s'\n", spec, opt); | |
| return AVERROR(EINVAL); | |
| } | |
| return 0; | |
| } | |
| static int dummy; | |
| static const OptionDef options[] = { | |
| CMDUTILS_COMMON_OPTIONS | |
| { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" }, | |
| { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" }, | |
| { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" }, | |
| { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" }, | |
| { "an", OPT_BOOL, { &audio_disable }, "disable audio" }, | |
| { "vn", OPT_BOOL, { &video_disable }, "disable video" }, | |
| { "sn", OPT_BOOL, { &subtitle_disable }, "disable subtitling" }, | |
| { "ast", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_specifier" }, | |
| { "vst", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_specifier" }, | |
| { "sst", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_specifier" }, | |
| { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" }, | |
| { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" }, | |
| { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" }, | |
| { "seek_interval", OPT_FLOAT | HAS_ARG, { &seek_interval }, "set seek interval for left/right keys, in seconds", "seconds" }, | |
| { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" }, | |
| { "noborder", OPT_BOOL, { &borderless }, "borderless window" }, | |
| { "alwaysontop", OPT_BOOL, { &alwaysontop }, "window always on top" }, | |
| { "volume", OPT_INT | HAS_ARG, { &startup_volume}, "set startup volume 0=min 100=max", "volume" }, | |
| { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" }, | |
| { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" }, | |
| { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" }, | |
| { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" }, | |
| { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" }, | |
| { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""}, | |
| { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { &lowres }, "", "" }, | |
| { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" }, | |
| { "autoexit", OPT_BOOL | OPT_EXPERT, { &autoexit }, "exit at the end", "" }, | |
| { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" }, | |
| { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" }, | |
| { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" }, | |
| { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" }, | |
| { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" }, | |
| { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" }, | |
| { "left", OPT_INT | HAS_ARG | OPT_EXPERT, { &screen_left }, "set the x position for the left of the window", "x pos" }, | |
| { "top", OPT_INT | HAS_ARG | OPT_EXPERT, { &screen_top }, "set the y position for the top of the window", "y pos" }, | |
| #if CONFIG_AVFILTER | |
| { "vf", OPT_EXPERT | HAS_ARG, { .func_arg = opt_add_vfilter }, "set video filters", "filter_graph" }, | |
| { "af", OPT_STRING | HAS_ARG, { &afilters }, "set audio filters", "filter_graph" }, | |
| #endif | |
| { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" }, | |
| { "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" }, | |
| { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default }, "generic catch all option", "" }, | |
| { "i", OPT_BOOL, { &dummy}, "read specified file", "input_file"}, | |
| { "codec", HAS_ARG, { .func_arg = opt_codec}, "force decoder", "decoder_name" }, | |
| { "acodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &audio_codec_name }, "force audio decoder", "decoder_name" }, | |
| { "scodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &subtitle_codec_name }, "force subtitle decoder", "decoder_name" }, | |
| { "vcodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &video_codec_name }, "force video decoder", "decoder_name" }, | |
| { "autorotate", OPT_BOOL, { &autorotate }, "automatically rotate video", "" }, | |
| { "find_stream_info", OPT_BOOL | OPT_INPUT | OPT_EXPERT, { &find_stream_info }, | |
| "read and decode the streams to fill missing information with heuristics" }, | |
| { "filter_threads", HAS_ARG | OPT_INT | OPT_EXPERT, { &filter_nbthreads }, "number of filter threads per graph" }, | |
| { NULL, }, | |
| }; | |
| static void show_usage(void) | |
| { | |
| av_log(NULL, AV_LOG_INFO, "Simple media player\n"); | |
| av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name); | |
| av_log(NULL, AV_LOG_INFO, "\n"); | |
| } | |
| void show_help_default(const char *opt, const char *arg) | |
| { | |
| av_log_set_callback(log_callback_help); | |
| show_usage(); | |
| show_help_options(options, "Main options:", 0, OPT_EXPERT, 0); | |
| show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0); | |
| printf("\n"); | |
| show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM); | |
| show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM); | |
| #if !CONFIG_AVFILTER | |
| show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM); | |
| #else | |
| show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM); | |
| #endif | |
| printf("\nWhile playing:\n" | |
| "q, ESC quit\n" | |
| "f toggle full screen\n" | |
| "p, SPC pause\n" | |
| "m toggle mute\n" | |
| "9, 0 decrease and increase volume respectively\n" | |
| "/, * decrease and increase volume respectively\n" | |
| "a cycle audio channel in the current program\n" | |
| "v cycle video channel\n" | |
| "t cycle subtitle channel in the current program\n" | |
| "c cycle program\n" | |
| "w cycle video filters or show modes\n" | |
| "s activate frame-step mode\n" | |
| "left/right seek backward/forward 10 seconds or to custom interval if -seek_interval is set\n" | |
| "down/up seek backward/forward 1 minute\n" | |
| "page down/page up seek backward/forward 10 minutes\n" | |
| "right mouse click seek to percentage in file corresponding to fraction of width\n" | |
| "left double-click toggle full screen\n" | |
| ); | |
| } | |
| /* Called from the main */ | |
| int main(int argc, char **argv) | |
| { | |
| int flags; | |
| VideoState *is; | |
| init_dynload(); | |
| av_log_set_flags(AV_LOG_SKIP_REPEATED); | |
| parse_loglevel(argc, argv, options); | |
| /* register all codecs, demux and protocols */ | |
| #if CONFIG_AVDEVICE | |
| avdevice_register_all(); | |
| #endif | |
| avformat_network_init(); | |
| init_opts(); | |
| signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */ | |
| signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */ | |
| show_banner(argc, argv, options); | |
| parse_options(NULL, argc, argv, options, opt_input_file); | |
| if (!input_filename) { | |
| show_usage(); | |
| av_log(NULL, AV_LOG_FATAL, "An input file must be specified\n"); | |
| av_log(NULL, AV_LOG_FATAL, | |
| "Use -h to get full help or, even better, run 'man %s'\n", program_name); | |
| exit(1); | |
| } | |
| if (display_disable) { | |
| video_disable = 1; | |
| } | |
| flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER; | |
| if (audio_disable) | |
| flags &= ~SDL_INIT_AUDIO; | |
| else { | |
| /* Try to work around an occasional ALSA buffer underflow issue when the | |
| * period size is NPOT due to ALSA resampling by forcing the buffer size. */ | |
| if (!SDL_getenv("SDL_AUDIO_ALSA_SET_BUFFER_SIZE")) | |
| SDL_setenv("SDL_AUDIO_ALSA_SET_BUFFER_SIZE","1", 1); | |
| } | |
| if (display_disable) | |
| flags &= ~SDL_INIT_VIDEO; | |
| if (SDL_Init (flags)) { | |
| av_log(NULL, AV_LOG_FATAL, "Could not initialize SDL - %s\n", SDL_GetError()); | |
| av_log(NULL, AV_LOG_FATAL, "(Did you set the DISPLAY variable?)\n"); | |
| exit(1); | |
| } | |
| SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE); | |
| SDL_EventState(SDL_USEREVENT, SDL_IGNORE); | |
| if (!display_disable) { | |
| int flags = SDL_WINDOW_HIDDEN; | |
| if (alwaysontop) | |
| #if SDL_VERSION_ATLEAST(2,0,5) | |
| flags |= SDL_WINDOW_ALWAYS_ON_TOP; | |
| #else | |
| av_log(NULL, AV_LOG_WARNING, "Your SDL version doesn't support SDL_WINDOW_ALWAYS_ON_TOP. Feature will be inactive.\n"); | |
| #endif | |
| if (borderless) | |
| flags |= SDL_WINDOW_BORDERLESS; | |
| else | |
| flags |= SDL_WINDOW_RESIZABLE; | |
| window = SDL_CreateWindow(program_name, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, default_width, default_height, flags); | |
| SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear"); | |
| if (window) { | |
| renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC); | |
| if (!renderer) { | |
| av_log(NULL, AV_LOG_WARNING, "Failed to initialize a hardware accelerated renderer: %s\n", SDL_GetError()); | |
| renderer = SDL_CreateRenderer(window, -1, 0); | |
| } | |
| if (renderer) { | |
| if (!SDL_GetRendererInfo(renderer, &renderer_info)) | |
| av_log(NULL, AV_LOG_VERBOSE, "Initialized %s renderer.\n", renderer_info.name); | |
| } | |
| } | |
| if (!window || !renderer || !renderer_info.num_texture_formats) { | |
| av_log(NULL, AV_LOG_FATAL, "Failed to create window or renderer: %s", SDL_GetError()); | |
| do_exit(NULL); | |
| } | |
| } | |
| is = stream_open(input_filename, file_iformat); | |
| if (!is) { | |
| av_log(NULL, AV_LOG_FATAL, "Failed to initialize VideoState!\n"); | |
| do_exit(NULL); | |
| } | |
| event_loop(is); | |
| /* never returns */ | |
| return 0; | |
| } |