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/*
* Copyright (c) 2000-2003 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
* multimedia converter based on the FFmpeg libraries
*/
#include "config.h"
#include <ctype.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
#include <errno.h>
#include <signal.h>
#include <limits.h>
#include <unistd.h>
#include "libavformat/avformat.h"
#include "libavdevice/avdevice.h"
#include "libswscale/swscale.h"
#include "libavutil/opt.h"
#include "libavcodec/audioconvert.h"
#include "libavutil/audioconvert.h"
#include "libavutil/parseutils.h"
#include "libavutil/samplefmt.h"
#include "libavutil/colorspace.h"
#include "libavutil/fifo.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/dict.h"
#include "libavutil/mathematics.h"
#include "libavutil/pixdesc.h"
#include "libavutil/avstring.h"
#include "libavutil/libm.h"
#include "libavutil/imgutils.h"
#include "libavutil/timestamp.h"
#include "libavformat/os_support.h"
#include "libswresample/swresample.h"
#include "libavformat/ffm.h" // not public API
# include "libavfilter/avcodec.h"
# include "libavfilter/avfilter.h"
# include "libavfilter/avfiltergraph.h"
# include "libavfilter/buffersink.h"
# include "libavfilter/buffersrc.h"
# include "libavfilter/vsrc_buffer.h"
#if HAVE_SYS_RESOURCE_H
#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>
#elif HAVE_GETPROCESSTIMES
#include <windows.h>
#endif
#if HAVE_GETPROCESSMEMORYINFO
#include <windows.h>
#include <psapi.h>
#endif
#if HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#if HAVE_TERMIOS_H
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <termios.h>
#elif HAVE_KBHIT
#include <conio.h>
#endif
#include <time.h>
#include "cmdutils.h"
#include "libavutil/avassert.h"
#define VSYNC_AUTO -1
#define VSYNC_PASSTHROUGH 0
#define VSYNC_CFR 1
#define VSYNC_VFR 2
#define VSYNC_DROP 0xff
const char program_name[] = "ffmpeg";
const int program_birth_year = 2000;
/* select an input stream for an output stream */
typedef struct StreamMap {
int disabled; /** 1 is this mapping is disabled by a negative map */
int file_index;
int stream_index;
int sync_file_index;
int sync_stream_index;
} StreamMap;
typedef struct {
int file_idx, stream_idx, channel_idx; // input
int ofile_idx, ostream_idx; // output
} AudioChannelMap;
static const OptionDef options[];
#define MAX_STREAMS 1024 /* arbitrary sanity check value */
static int frame_bits_per_raw_sample = 0;
static int video_discard = 0;
static int same_quant = 0;
static int do_deinterlace = 0;
static int intra_dc_precision = 8;
static int qp_hist = 0;
static int intra_only = 0;
static const char *video_codec_name = NULL;
static const char *audio_codec_name = NULL;
static const char *subtitle_codec_name = NULL;
static int file_overwrite = 0;
static int no_file_overwrite = 0;
static int do_benchmark = 0;
static int do_hex_dump = 0;
static int do_pkt_dump = 0;
static int do_psnr = 0;
static int do_pass = 0;
static const char *pass_logfilename_prefix;
static int video_sync_method = VSYNC_AUTO;
static int audio_sync_method = 0;
static float audio_drift_threshold = 0.1;
static int copy_ts = 0;
static int copy_tb = -1;
static int opt_shortest = 0;
static char *vstats_filename;
static FILE *vstats_file;
static int audio_volume = 256;
static int exit_on_error = 0;
static int using_stdin = 0;
static int run_as_daemon = 0;
static volatile int received_nb_signals = 0;
static int64_t video_size = 0;
static int64_t audio_size = 0;
static int64_t extra_size = 0;
static int nb_frames_dup = 0;
static int nb_frames_drop = 0;
static int input_sync;
static float dts_delta_threshold = 10;
static float dts_error_threshold = 3600*30;
static int print_stats = 1;
static int debug_ts = 0;
static uint8_t *audio_buf;
static unsigned int allocated_audio_buf_size;
static uint8_t *async_buf;
static unsigned int allocated_async_buf_size;
#define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
typedef struct FrameBuffer {
uint8_t *base[4];
uint8_t *data[4];
int linesize[4];
int h, w;
enum PixelFormat pix_fmt;
int refcount;
struct InputStream *ist;
struct FrameBuffer *next;
} FrameBuffer;
typedef struct InputStream {
int file_index;
AVStream *st;
int discard; /* true if stream data should be discarded */
int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
AVCodec *dec;
AVFrame *decoded_frame;
AVFrame *filtered_frame;
int64_t start; /* time when read started */
/* predicted dts of the next packet read for this stream or (when there are
* several frames in a packet) of the next frame in current packet */
int64_t next_dts;
/* dts of the last packet read for this stream */
int64_t dts;
int64_t next_pts; ///< synthetic pts for the next decode frame
int64_t pts; ///< current pts of the decoded frame
double ts_scale;
int is_start; /* is 1 at the start and after a discontinuity */
int showed_multi_packet_warning;
AVDictionary *opts;
/* a pool of free buffers for decoded data */
FrameBuffer *buffer_pool;
int dr1;
} InputStream;
typedef struct InputFile {
AVFormatContext *ctx;
int eof_reached; /* true if eof reached */
int ist_index; /* index of first stream in input_streams */
int buffer_size; /* current total buffer size */
int64_t ts_offset;
int nb_streams; /* number of stream that ffmpeg is aware of; may be different
from ctx.nb_streams if new streams appear during av_read_frame() */
int rate_emu;
} InputFile;
typedef struct OutputStream {
int file_index; /* file index */
int index; /* stream index in the output file */
int source_index; /* InputStream index */
AVStream *st; /* stream in the output file */
int encoding_needed; /* true if encoding needed for this stream */
int frame_number;
/* input pts and corresponding output pts
for A/V sync */
struct InputStream *sync_ist; /* input stream to sync against */
int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
AVBitStreamFilterContext *bitstream_filters;
AVCodec *enc;
int64_t max_frames;
AVFrame *output_frame;
/* video only */
int video_resample;
int resample_height;
int resample_width;
int resample_pix_fmt;
AVRational frame_rate;
int force_fps;
int top_field_first;
float frame_aspect_ratio;
/* forced key frames */
int64_t *forced_kf_pts;
int forced_kf_count;
int forced_kf_index;
/* audio only */
int audio_resample;
int audio_channels_map[SWR_CH_MAX]; ///< list of the channels id to pick from the source stream
int audio_channels_mapped; ///< number of channels in audio_channels_map
int resample_sample_fmt;
int resample_channels;
int resample_sample_rate;
float rematrix_volume;
AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
FILE *logfile;
SwrContext *swr;
AVFilterContext *output_video_filter;
AVFilterContext *input_video_filter;
char *avfilter;
AVFilterGraph *graph;
int64_t sws_flags;
AVDictionary *opts;
int is_past_recording_time;
int stream_copy;
const char *attachment_filename;
int copy_initial_nonkeyframes;
} OutputStream;
#if HAVE_TERMIOS_H
/* init terminal so that we can grab keys */
static struct termios oldtty;
static int restore_tty;
#endif
typedef struct OutputFile {
AVFormatContext *ctx;
AVDictionary *opts;
int ost_index; /* index of the first stream in output_streams */
int64_t recording_time; /* desired length of the resulting file in microseconds */
int64_t start_time; /* start time in microseconds */
uint64_t limit_filesize; /* filesize limit expressed in bytes */
} OutputFile;
static InputStream *input_streams = NULL;
static int nb_input_streams = 0;
static InputFile *input_files = NULL;
static int nb_input_files = 0;
static OutputStream *output_streams = NULL;
static int nb_output_streams = 0;
static OutputFile *output_files = NULL;
static int nb_output_files = 0;
typedef struct OptionsContext {
/* input/output options */
int64_t start_time;
const char *format;
SpecifierOpt *codec_names;
int nb_codec_names;
SpecifierOpt *audio_channels;
int nb_audio_channels;
SpecifierOpt *audio_sample_rate;
int nb_audio_sample_rate;
SpecifierOpt *rematrix_volume;
int nb_rematrix_volume;
SpecifierOpt *frame_rates;
int nb_frame_rates;
SpecifierOpt *frame_sizes;
int nb_frame_sizes;
SpecifierOpt *frame_pix_fmts;
int nb_frame_pix_fmts;
/* input options */
int64_t input_ts_offset;
int rate_emu;
SpecifierOpt *ts_scale;
int nb_ts_scale;
SpecifierOpt *dump_attachment;
int nb_dump_attachment;
/* output options */
StreamMap *stream_maps;
int nb_stream_maps;
AudioChannelMap *audio_channel_maps; ///< one info entry per -map_channel
int nb_audio_channel_maps; ///< number of (valid) -map_channel settings
int metadata_global_manual;
int metadata_streams_manual;
int metadata_chapters_manual;
const char **attachments;
int nb_attachments;
int chapters_input_file;
int64_t recording_time;
uint64_t limit_filesize;
float mux_preload;
float mux_max_delay;
int video_disable;
int audio_disable;
int subtitle_disable;
int data_disable;
/* indexed by output file stream index */
int *streamid_map;
int nb_streamid_map;
SpecifierOpt *metadata;
int nb_metadata;
SpecifierOpt *max_frames;
int nb_max_frames;
SpecifierOpt *bitstream_filters;
int nb_bitstream_filters;
SpecifierOpt *codec_tags;
int nb_codec_tags;
SpecifierOpt *sample_fmts;
int nb_sample_fmts;
SpecifierOpt *qscale;
int nb_qscale;
SpecifierOpt *forced_key_frames;
int nb_forced_key_frames;
SpecifierOpt *force_fps;
int nb_force_fps;
SpecifierOpt *frame_aspect_ratios;
int nb_frame_aspect_ratios;
SpecifierOpt *rc_overrides;
int nb_rc_overrides;
SpecifierOpt *intra_matrices;
int nb_intra_matrices;
SpecifierOpt *inter_matrices;
int nb_inter_matrices;
SpecifierOpt *top_field_first;
int nb_top_field_first;
SpecifierOpt *metadata_map;
int nb_metadata_map;
SpecifierOpt *presets;
int nb_presets;
SpecifierOpt *copy_initial_nonkeyframes;
int nb_copy_initial_nonkeyframes;
SpecifierOpt *filters;
int nb_filters;
} OptionsContext;
#define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
{\
int i, ret;\
for (i = 0; i < o->nb_ ## name; i++) {\
char *spec = o->name[i].specifier;\
if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
outvar = o->name[i].u.type;\
else if (ret < 0)\
exit_program(1);\
}\
}
static void reset_options(OptionsContext *o, int is_input)
{
const OptionDef *po = options;
OptionsContext bak= *o;
/* all OPT_SPEC and OPT_STRING can be freed in generic way */
while (po->name) {
void *dst = (uint8_t*)o + po->u.off;
if (po->flags & OPT_SPEC) {
SpecifierOpt **so = dst;
int i, *count = (int*)(so + 1);
for (i = 0; i < *count; i++) {
av_freep(&(*so)[i].specifier);
if (po->flags & OPT_STRING)
av_freep(&(*so)[i].u.str);
}
av_freep(so);
*count = 0;
} else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
av_freep(dst);
po++;
}
av_freep(&o->stream_maps);
av_freep(&o->audio_channel_maps);
av_freep(&o->streamid_map);
memset(o, 0, sizeof(*o));
if(is_input) o->recording_time = bak.recording_time;
else o->recording_time = INT64_MAX;
o->mux_max_delay = 0.7;
o->limit_filesize = UINT64_MAX;
o->chapters_input_file = INT_MAX;
uninit_opts();
init_opts();
}
static int alloc_buffer(InputStream *ist, AVCodecContext *s, FrameBuffer **pbuf)
{
FrameBuffer *buf = av_mallocz(sizeof(*buf));
int i, ret;
const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
int h_chroma_shift, v_chroma_shift;
int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1
int w = s->width, h = s->height;
if (!buf)
return AVERROR(ENOMEM);
if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
w += 2*edge;
h += 2*edge;
}
avcodec_align_dimensions(s, &w, &h);
if ((ret = av_image_alloc(buf->base, buf->linesize, w, h,
s->pix_fmt, 32)) < 0) {
av_freep(&buf);
return ret;
}
/* XXX this shouldn't be needed, but some tests break without this line
* those decoders are buggy and need to be fixed.
* the following tests fail:
* cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit
*/
memset(buf->base[0], 128, ret);
avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
const int h_shift = i==0 ? 0 : h_chroma_shift;
const int v_shift = i==0 ? 0 : v_chroma_shift;
if ((s->flags & CODEC_FLAG_EMU_EDGE) || !buf->linesize[1])
buf->data[i] = buf->base[i];
else
buf->data[i] = buf->base[i] +
FFALIGN((buf->linesize[i]*edge >> v_shift) +
(pixel_size*edge >> h_shift), 32);
}
buf->w = s->width;
buf->h = s->height;
buf->pix_fmt = s->pix_fmt;
buf->ist = ist;
*pbuf = buf;
return 0;
}
static void free_buffer_pool(InputStream *ist)
{
FrameBuffer *buf = ist->buffer_pool;
while (buf) {
ist->buffer_pool = buf->next;
av_freep(&buf->base[0]);
av_free(buf);
buf = ist->buffer_pool;
}
}
static void unref_buffer(InputStream *ist, FrameBuffer *buf)
{
av_assert0(buf->refcount);
buf->refcount--;
if (!buf->refcount) {
buf->next = ist->buffer_pool;
ist->buffer_pool = buf;
}
}
static int codec_get_buffer(AVCodecContext *s, AVFrame *frame)
{
InputStream *ist = s->opaque;
FrameBuffer *buf;
int ret, i;
if(av_image_check_size(s->width, s->height, 0, s) || s->pix_fmt<0)
return -1;
if (!ist->buffer_pool && (ret = alloc_buffer(ist, s, &ist->buffer_pool)) < 0)
return ret;
buf = ist->buffer_pool;
ist->buffer_pool = buf->next;
buf->next = NULL;
if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) {
av_freep(&buf->base[0]);
av_free(buf);
if ((ret = alloc_buffer(ist, s, &buf)) < 0)
return ret;
}
buf->refcount++;
frame->opaque = buf;
frame->type = FF_BUFFER_TYPE_USER;
frame->extended_data = frame->data;
frame->pkt_pts = s->pkt ? s->pkt->pts : AV_NOPTS_VALUE;
frame->width = buf->w;
frame->height = buf->h;
frame->format = buf->pix_fmt;
frame->sample_aspect_ratio = s->sample_aspect_ratio;
for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
frame->base[i] = buf->base[i]; // XXX h264.c uses base though it shouldn't
frame->data[i] = buf->data[i];
frame->linesize[i] = buf->linesize[i];
}
return 0;
}
static void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
{
InputStream *ist = s->opaque;
FrameBuffer *buf = frame->opaque;
int i;
if(frame->type!=FF_BUFFER_TYPE_USER)
return avcodec_default_release_buffer(s, frame);
for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++)
frame->data[i] = NULL;
unref_buffer(ist, buf);
}
static void filter_release_buffer(AVFilterBuffer *fb)
{
FrameBuffer *buf = fb->priv;
av_free(fb);
unref_buffer(buf->ist, buf);
}
static int configure_video_filters(InputStream *ist, OutputStream *ost)
{
AVFilterContext *last_filter, *filter;
/** filter graph containing all filters including input & output */
AVCodecContext *codec = ost->st->codec;
AVCodecContext *icodec = ist->st->codec;
enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE };
AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
AVRational sample_aspect_ratio;
char args[255];
int ret;
ost->graph = avfilter_graph_alloc();
if (!ost->graph)
return AVERROR(ENOMEM);
if (ist->st->sample_aspect_ratio.num) {
sample_aspect_ratio = ist->st->sample_aspect_ratio;
} else
sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d:flags=%d", ist->st->codec->width,
ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
sample_aspect_ratio.num, sample_aspect_ratio.den, SWS_BILINEAR + ((icodec->flags&CODEC_FLAG_BITEXACT) ? SWS_BITEXACT:0));
ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
"src", args, NULL, ost->graph);
if (ret < 0)
return ret;
#if FF_API_OLD_VSINK_API
ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
"out", NULL, pix_fmts, ost->graph);
#else
buffersink_params->pixel_fmts = pix_fmts;
ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
"out", NULL, buffersink_params, ost->graph);
#endif
av_freep(&buffersink_params);
if (ret < 0)
return ret;
last_filter = ost->input_video_filter;
if (codec->width != icodec->width || codec->height != icodec->height) {
snprintf(args, 255, "%d:%d:flags=0x%X",
codec->width,
codec->height,
(unsigned)ost->sws_flags);
if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
NULL, args, NULL, ost->graph)) < 0)
return ret;
if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
return ret;
last_filter = filter;
}
snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
ost->graph->scale_sws_opts = av_strdup(args);
if (ost->avfilter) {
AVFilterInOut *outputs = avfilter_inout_alloc();
AVFilterInOut *inputs = avfilter_inout_alloc();
outputs->name = av_strdup("in");
outputs->filter_ctx = last_filter;
outputs->pad_idx = 0;
outputs->next = NULL;
inputs->name = av_strdup("out");
inputs->filter_ctx = ost->output_video_filter;
inputs->pad_idx = 0;
inputs->next = NULL;
if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0)
return ret;
av_freep(&ost->avfilter);
} else {
if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
return ret;
}
if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
return ret;
codec->width = ost->output_video_filter->inputs[0]->w;
codec->height = ost->output_video_filter->inputs[0]->h;
codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
ost->frame_aspect_ratio ? // overridden by the -aspect cli option
av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
ost->output_video_filter->inputs[0]->sample_aspect_ratio;
return 0;
}
static void term_exit(void)
{
av_log(NULL, AV_LOG_QUIET, "%s", "");
#if HAVE_TERMIOS_H
if(restore_tty)
tcsetattr (0, TCSANOW, &oldtty);
#endif
}
static volatile int received_sigterm = 0;
static void sigterm_handler(int sig)
{
received_sigterm = sig;
received_nb_signals++;
term_exit();
if(received_nb_signals > 3)
exit(123);
}
static void term_init(void)
{
#if HAVE_TERMIOS_H
if(!run_as_daemon){
struct termios tty;
if (tcgetattr (0, &tty) == 0) {
oldtty = tty;
restore_tty = 1;
atexit(term_exit);
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
|INLCR|IGNCR|ICRNL|IXON);
tty.c_oflag |= OPOST;
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
tty.c_cflag &= ~(CSIZE|PARENB);
tty.c_cflag |= CS8;
tty.c_cc[VMIN] = 1;
tty.c_cc[VTIME] = 0;
tcsetattr (0, TCSANOW, &tty);
}
signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
}
#endif
avformat_network_deinit();
signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
#ifdef SIGXCPU
signal(SIGXCPU, sigterm_handler);
#endif
}
/* read a key without blocking */
static int read_key(void)
{
unsigned char ch;
#if HAVE_TERMIOS_H
int n = 1;
struct timeval tv;
fd_set rfds;
FD_ZERO(&rfds);
FD_SET(0, &rfds);
tv.tv_sec = 0;
tv.tv_usec = 0;
n = select(1, &rfds, NULL, NULL, &tv);
if (n > 0) {
n = read(0, &ch, 1);
if (n == 1)
return ch;
return n;
}
#elif HAVE_KBHIT
# if HAVE_PEEKNAMEDPIPE
static int is_pipe;
static HANDLE input_handle;
DWORD dw, nchars;
if(!input_handle){
input_handle = GetStdHandle(STD_INPUT_HANDLE);
is_pipe = !GetConsoleMode(input_handle, &dw);
}
if (stdin->_cnt > 0) {
read(0, &ch, 1);
return ch;
}
if (is_pipe) {
/* When running under a GUI, you will end here. */
if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL))
return -1;
//Read it
if(nchars != 0) {
read(0, &ch, 1);
return ch;
}else{
return -1;
}
}
# endif
if(kbhit())
return(getch());
#endif
return -1;
}
static int decode_interrupt_cb(void *ctx)
{
return received_nb_signals > 1;
}
static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
void av_noreturn exit_program(int ret)
{
int i;
/* close files */
for (i = 0; i < nb_output_files; i++) {
AVFormatContext *s = output_files[i].ctx;
if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
avio_close(s->pb);
avformat_free_context(s);
av_dict_free(&output_files[i].opts);
}
for (i = 0; i < nb_output_streams; i++) {
AVBitStreamFilterContext *bsfc = output_streams[i].bitstream_filters;
while (bsfc) {
AVBitStreamFilterContext *next = bsfc->next;
av_bitstream_filter_close(bsfc);
bsfc = next;
}
output_streams[i].bitstream_filters = NULL;
if (output_streams[i].output_frame) {
AVFrame *frame = output_streams[i].output_frame;
if (frame->extended_data != frame->data)
av_freep(&frame->extended_data);
av_freep(&frame);
}
}
for (i = 0; i < nb_input_files; i++) {
avformat_close_input(&input_files[i].ctx);
}
for (i = 0; i < nb_input_streams; i++) {
av_freep(&input_streams[i].decoded_frame);
av_freep(&input_streams[i].filtered_frame);
av_dict_free(&input_streams[i].opts);
free_buffer_pool(&input_streams[i]);
}
if (vstats_file)
fclose(vstats_file);
av_free(vstats_filename);
av_freep(&input_streams);
av_freep(&input_files);
av_freep(&output_streams);
av_freep(&output_files);
uninit_opts();
av_freep(&audio_buf);
allocated_audio_buf_size = 0;
av_freep(&async_buf);
allocated_async_buf_size = 0;
avfilter_uninit();
avformat_network_deinit();
if (received_sigterm) {
av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
(int) received_sigterm);
exit (255);
}
exit(ret); /* not all OS-es handle main() return value */
}
static void assert_avoptions(AVDictionary *m)
{
AVDictionaryEntry *t;
if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
exit_program(1);
}
}
static void assert_codec_experimental(AVCodecContext *c, int encoder)
{
const char *codec_string = encoder ? "encoder" : "decoder";
AVCodec *codec;
if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
"results.\nAdd '-strict experimental' if you want to use it.\n",
codec_string, c->codec->name);
codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
codec_string, codec->name);
exit_program(1);
}
}
static void choose_sample_fmt(AVStream *st, AVCodec *codec)
{
if (codec && codec->sample_fmts) {
const enum AVSampleFormat *p = codec->sample_fmts;
for (; *p != -1; p++) {
if (*p == st->codec->sample_fmt)
break;
}
if (*p == -1) {
if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
av_log(NULL, AV_LOG_ERROR, "Conversion will not be lossless.\n");
if(av_get_sample_fmt_name(st->codec->sample_fmt))
av_log(NULL, AV_LOG_WARNING,
"Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
av_get_sample_fmt_name(st->codec->sample_fmt),
codec->name,
av_get_sample_fmt_name(codec->sample_fmts[0]));
st->codec->sample_fmt = codec->sample_fmts[0];
}
}
}
static void choose_sample_rate(AVStream *st, AVCodec *codec)
{
if (codec && codec->supported_samplerates) {
const int *p = codec->supported_samplerates;
int best = 0;
int best_dist = INT_MAX;
for (; *p; p++) {
int dist = abs(st->codec->sample_rate - *p);
if (dist < best_dist) {
best_dist = dist;
best = *p;
}
}
if (best_dist) {
int i;
const int *sample_rates = codec->supported_samplerates;
av_log(st->codec, AV_LOG_WARNING,
"Requested sampling rate (%dHz) unsupported, using %dHz instead\n"
"Available sampling rates for %s:",
st->codec->sample_rate, best, codec->name);
for (i = 0; sample_rates[i]; i++) {
if (!sample_rates[i + 1]) av_log(st->codec, AV_LOG_WARNING, " and");
else if (i) av_log(st->codec, AV_LOG_WARNING, ",");
av_log(st->codec, AV_LOG_WARNING, " %d", sample_rates[i]);
}
av_log(st->codec, AV_LOG_WARNING, ".\n");
}
st->codec->sample_rate = best;
}
}
static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
{
if (codec && codec->pix_fmts) {
const enum PixelFormat *p = codec->pix_fmts;
int has_alpha= av_pix_fmt_descriptors[st->codec->pix_fmt].nb_components % 2 == 0;
enum PixelFormat best= PIX_FMT_NONE;
if (st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
if (st->codec->codec_id == CODEC_ID_MJPEG) {
p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE };
} else if (st->codec->codec_id == CODEC_ID_LJPEG) {
p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P,
PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE };
}
}
for (; *p != PIX_FMT_NONE; p++) {
best= avcodec_find_best_pix_fmt2(best, *p, st->codec->pix_fmt, has_alpha, NULL);
if (*p == st->codec->pix_fmt)
break;
}
if (*p == PIX_FMT_NONE) {
if (st->codec->pix_fmt != PIX_FMT_NONE)
av_log(NULL, AV_LOG_WARNING,
"Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
av_pix_fmt_descriptors[st->codec->pix_fmt].name,
codec->name,
av_pix_fmt_descriptors[best].name);
st->codec->pix_fmt = best;
}
}
}
static double
get_sync_ipts(const OutputStream *ost, int64_t pts)
{
OutputFile *of = &output_files[ost->file_index];
return (double)(pts - of->start_time) / AV_TIME_BASE;
}
static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
{
AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
AVCodecContext *avctx = ost->st->codec;
int ret;
if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
(avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
pkt->pts = pkt->dts = AV_NOPTS_VALUE;
/*
* Audio encoders may split the packets -- #frames in != #packets out.
* But there is no reordering, so we can limit the number of output packets
* by simply dropping them here.
* Counting encoded video frames needs to be done separately because of
* reordering, see do_video_out()
*/
if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
if (ost->frame_number >= ost->max_frames) {
av_free_packet(pkt);
return;
}
ost->frame_number++;
}
while (bsfc) {
AVPacket new_pkt = *pkt;
int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
&new_pkt.data, &new_pkt.size,
pkt->data, pkt->size,
pkt->flags & AV_PKT_FLAG_KEY);
if (a > 0) {
av_free_packet(pkt);
new_pkt.destruct = av_destruct_packet;
} else if (a < 0) {
av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
bsfc->filter->name, pkt->stream_index,
avctx->codec ? avctx->codec->name : "copy");
print_error("", a);
if (exit_on_error)
exit_program(1);
}
*pkt = new_pkt;
bsfc = bsfc->next;
}
pkt->stream_index = ost->index;
ret = av_interleaved_write_frame(s, pkt);
if (ret < 0) {
print_error("av_interleaved_write_frame()", ret);
exit_program(1);
}
}
static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
{
int fill_char = 0x00;
if (sample_fmt == AV_SAMPLE_FMT_U8)
fill_char = 0x80;
memset(buf, fill_char, size);
}
static int encode_audio_frame(AVFormatContext *s, OutputStream *ost,
const uint8_t *buf, int buf_size)
{
AVCodecContext *enc = ost->st->codec;
AVFrame *frame = NULL;
AVPacket pkt;
int ret, got_packet;
av_init_packet(&pkt);
pkt.data = NULL;
pkt.size = 0;
if (buf && buf_size) {
if (!ost->output_frame) {
ost->output_frame = avcodec_alloc_frame();
if (!ost->output_frame) {
av_log(NULL, AV_LOG_FATAL, "out-of-memory in encode_audio_frame()\n");
exit_program(1);
}
}
frame = ost->output_frame;
if (frame->extended_data != frame->data)
av_freep(&frame->extended_data);
avcodec_get_frame_defaults(frame);
frame->nb_samples = buf_size /
(enc->channels * av_get_bytes_per_sample(enc->sample_fmt));
if ((ret = avcodec_fill_audio_frame(frame, enc->channels, enc->sample_fmt,
buf, buf_size, 1)) < 0) {
av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_fill_audio_frame)\n");
exit_program(1);
}
frame->pts = ost->sync_opts;
ost->sync_opts += frame->nb_samples;
}
got_packet = 0;
if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
exit_program(1);
}
ret = pkt.size;
if (got_packet) {
if (pkt.pts != AV_NOPTS_VALUE)
pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
if (pkt.dts != AV_NOPTS_VALUE)
pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
if (pkt.duration > 0)
pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
write_frame(s, &pkt, ost);
audio_size += pkt.size;
av_free_packet(&pkt);
}
if (debug_ts) {
av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
"pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
}
return ret;
}
static int alloc_audio_output_buf(AVCodecContext *dec, AVCodecContext *enc,
int nb_samples)
{
int64_t audio_buf_samples;
int audio_buf_size;
/* calculate required number of samples to allocate */
audio_buf_samples = ((int64_t)nb_samples * enc->sample_rate + dec->sample_rate) /
dec->sample_rate;
audio_buf_samples = 4 * audio_buf_samples + 10000; // safety factors for resampling
audio_buf_samples = FFMAX(audio_buf_samples, enc->frame_size);
if (audio_buf_samples > INT_MAX)
return AVERROR(EINVAL);
audio_buf_size = av_samples_get_buffer_size(NULL, enc->channels,
audio_buf_samples,
enc->sample_fmt, 0);
if (audio_buf_size < 0)
return audio_buf_size;
av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
if (!audio_buf)
return AVERROR(ENOMEM);
return 0;
}
static void do_audio_out(AVFormatContext *s, OutputStream *ost,
InputStream *ist, AVFrame *decoded_frame)
{
uint8_t *buftmp;
int64_t size_out;
int frame_bytes, resample_changed;
AVCodecContext *enc = ost->st->codec;
AVCodecContext *dec = ist->st->codec;
int osize = av_get_bytes_per_sample(enc->sample_fmt);
int isize = av_get_bytes_per_sample(dec->sample_fmt);
uint8_t *buf[AV_NUM_DATA_POINTERS];
int size = decoded_frame->nb_samples * dec->channels * isize;
int planes = av_sample_fmt_is_planar(dec->sample_fmt) ? dec->channels : 1;
int i;
av_assert0(planes <= AV_NUM_DATA_POINTERS);
for(i=0; i<planes; i++)
buf[i]= decoded_frame->data[i];
if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples) < 0) {
av_log(NULL, AV_LOG_FATAL, "Error allocating audio buffer\n");
exit_program(1);
}
if (enc->channels != dec->channels
|| enc->sample_fmt != dec->sample_fmt
|| enc->sample_rate!= dec->sample_rate
)
ost->audio_resample = 1;
resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
ost->resample_channels != dec->channels ||
ost->resample_sample_rate != dec->sample_rate;
if ((ost->audio_resample && !ost->swr) || resample_changed || ost->audio_channels_mapped) {
if (resample_changed) {
av_log(NULL, AV_LOG_INFO, "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
ist->file_index, ist->st->index,
ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
ost->resample_sample_fmt = dec->sample_fmt;
ost->resample_channels = dec->channels;
ost->resample_sample_rate = dec->sample_rate;
swr_free(&ost->swr);
}
/* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
if (audio_sync_method <= 1 && !ost->audio_channels_mapped &&
ost->resample_sample_fmt == enc->sample_fmt &&
ost->resample_channels == enc->channels &&
ost->resample_sample_rate == enc->sample_rate) {
//ost->swr = NULL;
ost->audio_resample = 0;
} else {
ost->swr = swr_alloc_set_opts(ost->swr,
enc->channel_layout, enc->sample_fmt, enc->sample_rate,
dec->channel_layout, dec->sample_fmt, dec->sample_rate,
0, NULL);
if (ost->audio_channels_mapped)
swr_set_channel_mapping(ost->swr, ost->audio_channels_map);
av_opt_set_double(ost->swr, "rmvol", ost->rematrix_volume, 0);
if (ost->audio_channels_mapped) {
av_opt_set_int(ost->swr, "icl", av_get_default_channel_layout(ost->audio_channels_mapped), 0);
av_opt_set_int(ost->swr, "uch", ost->audio_channels_mapped, 0);
}
if (av_opt_set_int(ost->swr, "ich", dec->channels, 0) < 0) {
av_log(NULL, AV_LOG_FATAL, "Unsupported number of input channels\n");
exit_program(1);
}
if (av_opt_set_int(ost->swr, "och", enc->channels, 0) < 0) {
av_log(NULL, AV_LOG_FATAL, "Unsupported number of output channels\n");
exit_program(1);
}
if(audio_sync_method>1) av_opt_set_int(ost->swr, "flags", SWR_FLAG_RESAMPLE, 0);
if(ost->swr && swr_init(ost->swr) < 0){
av_log(NULL, AV_LOG_FATAL, "swr_init() failed\n");
swr_free(&ost->swr);
}
if (!ost->swr) {
av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
dec->channels, dec->sample_rate,
enc->channels, enc->sample_rate);
exit_program(1);
}
}
}
av_assert0(ost->audio_resample || dec->sample_fmt==enc->sample_fmt);
if (audio_sync_method > 0) {
double delta = get_sync_ipts(ost, ist->pts) * enc->sample_rate - ost->sync_opts -
av_fifo_size(ost->fifo) / (enc->channels * osize);
int idelta = delta * dec->sample_rate / enc->sample_rate;
int byte_delta = idelta * isize * dec->channels;
// FIXME resample delay
if (fabs(delta) > 50) {
if (ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate) {
if (byte_delta < 0) {
byte_delta = FFMAX(byte_delta, -size);
size += byte_delta;
for (i=0; i<planes; i++)
buf[i] -= byte_delta/planes;
av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
-byte_delta / (isize * dec->channels));
if (!size)
return;
ist->is_start = 0;
} else {
av_fast_malloc(&async_buf, &allocated_async_buf_size,
byte_delta + size);
if (!async_buf) {
av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
exit_program(1);
}
if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples + idelta) < 0) {
av_log(NULL, AV_LOG_FATAL, "Error allocating audio buffer\n");
exit_program(1);
}
ist->is_start = 0;
for (i=0; i<planes; i++) {
uint8_t *t = async_buf + i*((byte_delta + size)/planes);
generate_silence(t, dec->sample_fmt, byte_delta/planes);
memcpy(t + byte_delta/planes, buf[i], size/planes);
buf[i] = t;
}
size += byte_delta;
av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
}
} else if (audio_sync_method > 1) {
int comp = av_clip(delta, -audio_sync_method, audio_sync_method);
av_assert0(ost->audio_resample);
av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
delta, comp, enc->sample_rate);
// fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
swr_set_compensation(ost->swr, comp, enc->sample_rate);
}
}
} else if (audio_sync_method == 0)
ost->sync_opts = lrintf(get_sync_ipts(ost, ist->pts) * enc->sample_rate) -
av_fifo_size(ost->fifo) / (enc->channels * osize); // FIXME wrong
if (ost->audio_resample || ost->audio_channels_mapped) {
buftmp = audio_buf;
size_out = swr_convert(ost->swr, ( uint8_t*[]){buftmp}, allocated_audio_buf_size / (enc->channels * osize),
buf, size / (dec->channels * isize));
if (size_out < 0) {
av_log(NULL, AV_LOG_FATAL, "swr_convert failed\n");
exit_program(1);
}
size_out = size_out * enc->channels * osize;
} else {
buftmp = buf[0];
size_out = size;
}
av_assert0(ost->audio_resample || dec->sample_fmt==enc->sample_fmt);
/* now encode as many frames as possible */
if (!(enc->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
/* output resampled raw samples */
if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
exit_program(1);
}
av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
frame_bytes = enc->frame_size * osize * enc->channels;
while (av_fifo_size(ost->fifo) >= frame_bytes) {
av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
encode_audio_frame(s, ost, audio_buf, frame_bytes);
}
} else {
encode_audio_frame(s, ost, buftmp, size_out);
}
}
static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
{
AVCodecContext *dec;
AVPicture *picture2;
AVPicture picture_tmp;
uint8_t *buf = 0;
dec = ist->st->codec;
/* deinterlace : must be done before any resize */
if (do_deinterlace) {
int size;
/* create temporary picture */
size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
buf = av_malloc(size);
if (!buf)
return;
picture2 = &picture_tmp;
avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
if (avpicture_deinterlace(picture2, picture,
dec->pix_fmt, dec->width, dec->height) < 0) {
/* if error, do not deinterlace */
av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
av_free(buf);
buf = NULL;
picture2 = picture;
}
} else {
picture2 = picture;
}
if (picture != picture2)
*picture = *picture2;
*bufp = buf;
}
static void do_subtitle_out(AVFormatContext *s,
OutputStream *ost,
InputStream *ist,
AVSubtitle *sub,
int64_t pts)
{
static uint8_t *subtitle_out = NULL;
int subtitle_out_max_size = 1024 * 1024;
int subtitle_out_size, nb, i;
AVCodecContext *enc;
AVPacket pkt;
if (pts == AV_NOPTS_VALUE) {
av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
if (exit_on_error)
exit_program(1);
return;
}
enc = ost->st->codec;
if (!subtitle_out) {
subtitle_out = av_malloc(subtitle_out_max_size);
}
/* Note: DVB subtitle need one packet to draw them and one other
packet to clear them */
/* XXX: signal it in the codec context ? */
if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
nb = 2;
else
nb = 1;
for (i = 0; i < nb; i++) {
ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
// start_display_time is required to be 0
sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
sub->end_display_time -= sub->start_display_time;
sub->start_display_time = 0;
subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
subtitle_out_max_size, sub);
if (subtitle_out_size < 0) {
av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
exit_program(1);
}
av_init_packet(&pkt);
pkt.data = subtitle_out;
pkt.size = subtitle_out_size;
pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
/* XXX: the pts correction is handled here. Maybe handling
it in the codec would be better */
if (i == 0)
pkt.pts += 90 * sub->start_display_time;
else
pkt.pts += 90 * sub->end_display_time;
}
write_frame(s, &pkt, ost);
}
}
static double psnr(double d)
{
return -10.0 * log(d) / log(10.0);
}
static void do_video_stats(AVFormatContext *os, OutputStream *ost,
int frame_size)
{
AVCodecContext *enc;
int frame_number;
double ti1, bitrate, avg_bitrate;
/* this is executed just the first time do_video_stats is called */
if (!vstats_file) {
vstats_file = fopen(vstats_filename, "w");
if (!vstats_file) {
perror("fopen");
exit_program(1);
}
}
enc = ost->st->codec;
if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
frame_number = ost->frame_number;
fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
if (enc->flags&CODEC_FLAG_PSNR)
fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
fprintf(vstats_file,"f_size= %6d ", frame_size);
/* compute pts value */
ti1 = ost->sync_opts * av_q2d(enc->time_base);
if (ti1 < 0.01)
ti1 = 0.01;
bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
(double)video_size / 1024, ti1, bitrate, avg_bitrate);
fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
}
}
static void do_video_out(AVFormatContext *s, OutputStream *ost,
InputStream *ist, AVFrame *in_picture)
{
int nb_frames, i, ret, format_video_sync;
AVCodecContext *enc;
double sync_ipts, delta;
double duration = 0;
int frame_size = 0;
float quality = same_quant ? in_picture->quality
: ost->st->codec->global_quality;
enc = ost->st->codec;
if (ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE) {
duration = FFMAX(av_q2d(ist->st->time_base), av_q2d(ist->st->codec->time_base));
if(ist->st->r_frame_rate.num)
duration= FFMAX(duration, 1/av_q2d(ist->st->r_frame_rate));
if(ist->st->avg_frame_rate.num && 0)
duration= FFMAX(duration, 1/av_q2d(ist->st->avg_frame_rate));
duration /= av_q2d(enc->time_base);
}
sync_ipts = get_sync_ipts(ost, in_picture->pts) / av_q2d(enc->time_base);
delta = sync_ipts - ost->sync_opts + duration;
/* by default, we output a single frame */
nb_frames = 1;
format_video_sync = video_sync_method;
if (format_video_sync == VSYNC_AUTO)
format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : 1;
switch (format_video_sync) {
case VSYNC_CFR:
// FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
if (delta < -1.1)
nb_frames = 0;
else if (delta > 1.1)
nb_frames = lrintf(delta);
break;
case VSYNC_VFR:
if (delta <= -0.6)
nb_frames = 0;
else if (delta > 0.6)
ost->sync_opts = lrintf(sync_ipts);
break;
case VSYNC_DROP:
case VSYNC_PASSTHROUGH:
ost->sync_opts = lrintf(sync_ipts);
break;
default:
av_assert0(0);
}
nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
if (nb_frames == 0) {
nb_frames_drop++;
av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
return;
} else if (nb_frames > 1) {
nb_frames_dup += nb_frames - 1;
av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
}
/* duplicates frame if needed */
for (i = 0; i < nb_frames; i++) {
AVPacket pkt;
av_init_packet(&pkt);
pkt.data = NULL;
pkt.size = 0;
if (s->oformat->flags & AVFMT_RAWPICTURE &&
enc->codec->id == CODEC_ID_RAWVIDEO) {
/* raw pictures are written as AVPicture structure to
avoid any copies. We support temporarily the older
method. */
enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
enc->coded_frame->top_field_first = in_picture->top_field_first;
pkt.data = (uint8_t *)in_picture;
pkt.size = sizeof(AVPicture);
pkt.pts = av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
pkt.flags |= AV_PKT_FLAG_KEY;
write_frame(s, &pkt, ost);
} else {
int got_packet;
AVFrame big_picture;
big_picture = *in_picture;
/* better than nothing: use input picture interlaced
settings */
big_picture.interlaced_frame = in_picture->interlaced_frame;
if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
if (ost->top_field_first == -1)
big_picture.top_field_first = in_picture->top_field_first;
else
big_picture.top_field_first = !!ost->top_field_first;
}
/* handles same_quant here. This is not correct because it may
not be a global option */
big_picture.quality = quality;
if (!enc->me_threshold)
big_picture.pict_type = 0;
big_picture.pts = ost->sync_opts;
if (ost->forced_kf_index < ost->forced_kf_count &&
big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
big_picture.pict_type = AV_PICTURE_TYPE_I;
ost->forced_kf_index++;
}
ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
if (ret < 0) {
av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
exit_program(1);
}
if (got_packet) {
if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
pkt.pts = ost->sync_opts;
if (pkt.pts != AV_NOPTS_VALUE)
pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
if (pkt.dts != AV_NOPTS_VALUE)
pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
if (debug_ts) {
av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
"pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
}
write_frame(s, &pkt, ost);
frame_size = pkt.size;
video_size += pkt.size;
av_free_packet(&pkt);
/* if two pass, output log */
if (ost->logfile && enc->stats_out) {
fprintf(ost->logfile, "%s", enc->stats_out);
}
}
}
ost->sync_opts++;
/*
* For video, number of frames in == number of packets out.
* But there may be reordering, so we can't throw away frames on encoder
* flush, we need to limit them here, before they go into encoder.
*/
ost->frame_number++;
}
if (vstats_filename && frame_size)
do_video_stats(output_files[ost->file_index].ctx, ost, frame_size);
}
static void print_report(OutputFile *output_files,
OutputStream *ost_table, int nb_ostreams,
int is_last_report, int64_t timer_start, int64_t cur_time)
{
char buf[1024];
OutputStream *ost;
AVFormatContext *oc;
int64_t total_size;
AVCodecContext *enc;
int frame_number, vid, i;
double bitrate;
int64_t pts = INT64_MAX;
static int64_t last_time = -1;
static int qp_histogram[52];
int hours, mins, secs, us;
if (!print_stats && !is_last_report)
return;
if (!is_last_report) {
if (last_time == -1) {
last_time = cur_time;
return;
}
if ((cur_time - last_time) < 500000)
return;
last_time = cur_time;
}
oc = output_files[0].ctx;
total_size = avio_size(oc->pb);
if (total_size < 0) { // FIXME improve avio_size() so it works with non seekable output too
total_size = avio_tell(oc->pb);
if (total_size < 0)
total_size = 0;
}
buf[0] = '\0';
vid = 0;
for (i = 0; i < nb_ostreams; i++) {
float q = -1;
ost = &ost_table[i];
enc = ost->st->codec;
if (!ost->stream_copy && enc->coded_frame)
q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
}
if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
float fps, t = (cur_time-timer_start) / 1000000.0;
frame_number = ost->frame_number;
fps = t > 1 ? frame_number / t : 0;
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
frame_number, fps < 9.95, fps, q);
if (is_last_report)
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
if (qp_hist) {
int j;
int qp = lrintf(q);
if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
qp_histogram[qp]++;
for (j = 0; j < 32; j++)
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
}
if (enc->flags&CODEC_FLAG_PSNR) {
int j;
double error, error_sum = 0;
double scale, scale_sum = 0;
char type[3] = { 'Y','U','V' };
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
for (j = 0; j < 3; j++) {
if (is_last_report) {
error = enc->error[j];
scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
} else {
error = enc->coded_frame->error[j];
scale = enc->width * enc->height * 255.0 * 255.0;
}
if (j)
scale /= 4;
error_sum += error;
scale_sum += scale;
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
}
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
}
vid = 1;
}
/* compute min output value */
pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
ost->st->time_base, AV_TIME_BASE_Q));
}
secs = pts / AV_TIME_BASE;
us = pts % AV_TIME_BASE;
mins = secs / 60;
secs %= 60;
hours = mins / 60;
mins %= 60;
bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
"size=%8.0fkB time=", total_size / 1024.0);
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
"%02d:%02d:%02d.%02d ", hours, mins, secs,
(100 * us) / AV_TIME_BASE);
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
"bitrate=%6.1fkbits/s", bitrate);
if (nb_frames_dup || nb_frames_drop)
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
nb_frames_dup, nb_frames_drop);
av_log(NULL, AV_LOG_INFO, "%s \r", buf);
fflush(stderr);
if (is_last_report) {
int64_t raw= audio_size + video_size + extra_size;
av_log(NULL, AV_LOG_INFO, "\n");
av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
video_size / 1024.0,
audio_size / 1024.0,
extra_size / 1024.0,
100.0 * (total_size - raw) / raw
);
if(video_size + audio_size + extra_size == 0){
av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
}
}
}
static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
{
int i, ret;
for (i = 0; i < nb_ostreams; i++) {
OutputStream *ost = &ost_table[i];
AVCodecContext *enc = ost->st->codec;
AVFormatContext *os = output_files[ost->file_index].ctx;
int stop_encoding = 0;
if (!ost->encoding_needed)
continue;
if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
continue;
if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
continue;
for (;;) {
AVPacket pkt;
int fifo_bytes, got_packet;
av_init_packet(&pkt);
pkt.data = NULL;
pkt.size = 0;
switch (ost->st->codec->codec_type) {
case AVMEDIA_TYPE_AUDIO:
fifo_bytes = av_fifo_size(ost->fifo);
if (fifo_bytes > 0) {
/* encode any samples remaining in fifo */
int frame_bytes = fifo_bytes;
av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
/* pad last frame with silence if needed */
if (!(enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME)) {
frame_bytes = enc->frame_size * enc->channels *
av_get_bytes_per_sample(enc->sample_fmt);
if (allocated_audio_buf_size < frame_bytes)
exit_program(1);
generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
}
encode_audio_frame(os, ost, audio_buf, frame_bytes);
} else {
/* flush encoder with NULL frames until it is done
returning packets */
if (encode_audio_frame(os, ost, NULL, 0) == 0) {
stop_encoding = 1;
break;
}
}
break;
case AVMEDIA_TYPE_VIDEO:
ret = avcodec_encode_video2(enc, &pkt, NULL, &got_packet);
if (ret < 0) {
av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
exit_program(1);
}
video_size += pkt.size;
if (ost->logfile && enc->stats_out) {
fprintf(ost->logfile, "%s", enc->stats_out);
}
if (!got_packet) {
stop_encoding = 1;
break;
}
if (pkt.pts != AV_NOPTS_VALUE)
pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
if (pkt.dts != AV_NOPTS_VALUE)
pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
write_frame(os, &pkt, ost);
break;
default:
stop_encoding = 1;
}
if (stop_encoding)
break;
}
}
}
/*
* Check whether a packet from ist should be written into ost at this time
*/
static int check_output_constraints(InputStream *ist, OutputStream *ost)
{
OutputFile *of = &output_files[ost->file_index];
int ist_index = ist - input_streams;
if (ost->source_index != ist_index)
return 0;
if (of->start_time && ist->pts < of->start_time)
return 0;
if (of->recording_time != INT64_MAX &&
av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
(AVRational){ 1, 1000000 }) >= 0) {
ost->is_past_recording_time = 1;
return 0;
}
return 1;
}
static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
{
OutputFile *of = &output_files[ost->file_index];
int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
AVPicture pict;
AVPacket opkt;
av_init_packet(&opkt);
if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
!ost->copy_initial_nonkeyframes)
return;
/* force the input stream PTS */
if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
audio_size += pkt->size;
else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
video_size += pkt->size;
ost->sync_opts++;
}
if (pkt->pts != AV_NOPTS_VALUE)
opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
else
opkt.pts = AV_NOPTS_VALUE;
if (pkt->dts == AV_NOPTS_VALUE)
opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
else
opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
opkt.dts -= ost_tb_start_time;
opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
opkt.flags = pkt->flags;
// FIXME remove the following 2 lines they shall be replaced by the bitstream filters
if ( ost->st->codec->codec_id != CODEC_ID_H264
&& ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
&& ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
&& ost->st->codec->codec_id != CODEC_ID_VC1
) {
if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
opkt.destruct = av_destruct_packet;
} else {
opkt.data = pkt->data;
opkt.size = pkt->size;
}
if (of->ctx->oformat->flags & AVFMT_RAWPICTURE) {
/* store AVPicture in AVPacket, as expected by the output format */
avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
opkt.data = (uint8_t *)&pict;
opkt.size = sizeof(AVPicture);
opkt.flags |= AV_PKT_FLAG_KEY;
}
write_frame(of->ctx, &opkt, ost);
ost->st->codec->frame_number++;
av_free_packet(&opkt);
}
static void rate_emu_sleep(InputStream *ist)
{
if (input_files[ist->file_index].rate_emu) {
int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
int64_t now = av_gettime() - ist->start;
if (pts > now)
usleep(pts - now);
}
}
static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
{
AVFrame *decoded_frame;
AVCodecContext *avctx = ist->st->codec;
int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
int i, ret;
if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
return AVERROR(ENOMEM);
else
avcodec_get_frame_defaults(ist->decoded_frame);
decoded_frame = ist->decoded_frame;
ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
if (ret < 0) {
return ret;
}
if (avctx->sample_rate <= 0) {
av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
return AVERROR_INVALIDDATA;
}
if (!*got_output) {
/* no audio frame */
return ret;
}
/* if the decoder provides a pts, use it instead of the last packet pts.
the decoder could be delaying output by a packet or more. */
if (decoded_frame->pts != AV_NOPTS_VALUE)
ist->dts = ist->next_dts = ist->pts = ist->next_pts = decoded_frame->pts;
/* increment next_dts to use for the case where the input stream does not
have timestamps or there are multiple frames in the packet */
ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
avctx->sample_rate;
ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
avctx->sample_rate;
// preprocess audio (volume)
if (audio_volume != 256) {
int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
void *samples = decoded_frame->data[0];
switch (avctx->sample_fmt) {
case AV_SAMPLE_FMT_U8:
{
uint8_t *volp = samples;
for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
*volp++ = av_clip_uint8(v);
}
break;
}
case AV_SAMPLE_FMT_S16:
{
int16_t *volp = samples;
for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
int v = ((*volp) * audio_volume + 128) >> 8;
*volp++ = av_clip_int16(v);
}
break;
}
case AV_SAMPLE_FMT_S32:
{
int32_t *volp = samples;
for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
*volp++ = av_clipl_int32(v);
}
break;
}
case AV_SAMPLE_FMT_FLT:
{
float *volp = samples;
float scale = audio_volume / 256.f;
for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
*volp++ *= scale;
}
break;
}
case AV_SAMPLE_FMT_DBL:
{
double *volp = samples;
double scale = audio_volume / 256.;
for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
*volp++ *= scale;
}
break;
}
default:
av_log(NULL, AV_LOG_FATAL,
"Audio volume adjustment on sample format %s is not supported.\n",
av_get_sample_fmt_name(ist->st->codec->sample_fmt));
exit_program(1);
}
}
rate_emu_sleep(ist);
for (i = 0; i < nb_output_streams; i++) {
OutputStream *ost = &output_streams[i];
if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
continue;
do_audio_out(output_files[ost->file_index].ctx, ost, ist, decoded_frame);
}
return ret;
}
static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
{
AVFrame *decoded_frame;
void *buffer_to_free = NULL;
int i, ret = 0;
int64_t *best_effort_timestamp;
AVRational *frame_sample_aspect;
if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
return AVERROR(ENOMEM);
else
avcodec_get_frame_defaults(ist->decoded_frame);
decoded_frame = ist->decoded_frame;
pkt->pts = *pkt_pts;
pkt->dts = ist->dts;
*pkt_pts = AV_NOPTS_VALUE;
ret = avcodec_decode_video2(ist->st->codec,
decoded_frame, got_output, pkt);
if (ret < 0)
return ret;
if (!*got_output) {
/* no picture yet */
return ret;
}
best_effort_timestamp= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "best_effort_timestamp");
if(*best_effort_timestamp != AV_NOPTS_VALUE)
ist->next_pts = ist->pts = decoded_frame->pts = *best_effort_timestamp;
pkt->size = 0;
pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
for(i=0;i<nb_output_streams;i++) {
OutputStream *ost = ost = &output_streams[i];
if(check_output_constraints(ist, ost) && ost->encoding_needed){
int changed = ist->st->codec->width != ost->input_video_filter->outputs[0]->w
|| ist->st->codec->height != ost->input_video_filter->outputs[0]->h
|| ist->st->codec->pix_fmt != ost->input_video_filter->outputs[0]->format;
if (!frame_sample_aspect->num)
*frame_sample_aspect = ist->st->sample_aspect_ratio;
decoded_frame->pts = ist->pts;
if (ist->dr1 && decoded_frame->type==FF_BUFFER_TYPE_USER && !changed) {
FrameBuffer *buf = decoded_frame->opaque;
AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
decoded_frame->data, decoded_frame->linesize,
AV_PERM_READ | AV_PERM_PRESERVE,
ist->st->codec->width, ist->st->codec->height,
ist->st->codec->pix_fmt);
avfilter_copy_frame_props(fb, decoded_frame);
fb->buf->priv = buf;
fb->buf->free = filter_release_buffer;
buf->refcount++;
av_buffersrc_buffer(ost->input_video_filter, fb);
} else
if((av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame, AV_VSRC_BUF_FLAG_OVERWRITE)) < 0){
av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
exit_program(1);
}
}
}
rate_emu_sleep(ist);
if (ist->st->sample_aspect_ratio.num)
decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
for (i = 0; i < nb_output_streams; i++) {
OutputStream *ost = &output_streams[i];
if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
continue;
while (av_buffersink_poll_frame(ost->output_video_filter)) {
AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
AVFrame *filtered_frame;
AVFilterBufferRef *picref;
if (av_buffersink_get_buffer_ref(ost->output_video_filter, &picref, 0) < 0){
av_log(NULL, AV_LOG_WARNING, "AV Filter told us it has a frame available but failed to output one\n");
goto cont;
}
if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
ret = AVERROR(ENOMEM);
goto fail;
}
filtered_frame = ist->filtered_frame;
*filtered_frame= *decoded_frame; //for me_threshold
avfilter_fill_frame_from_video_buffer_ref(filtered_frame, picref);
filtered_frame->pts = av_rescale_q(picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
if (!ost->frame_aspect_ratio)
ost->st->codec->sample_aspect_ratio = picref->video->sample_aspect_ratio;
do_video_out(output_files[ost->file_index].ctx, ost, ist, filtered_frame);
cont:
avfilter_unref_buffer(picref);
}
}
fail:
av_free(buffer_to_free);
return ret;
}
static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
{
AVSubtitle subtitle;
int i, ret = avcodec_decode_subtitle2(ist->st->codec,
&subtitle, got_output, pkt);
if (ret < 0)
return ret;
if (!*got_output)
return ret;
rate_emu_sleep(ist);
for (i = 0; i < nb_output_streams; i++) {
OutputStream *ost = &output_streams[i];
if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
continue;
do_subtitle_out(output_files[ost->file_index].ctx, ost, ist, &subtitle, pkt->pts);
}
avsubtitle_free(&subtitle);
return ret;
}
/* pkt = NULL means EOF (needed to flush decoder buffers) */
static int output_packet(InputStream *ist,
OutputStream *ost_table, int nb_ostreams,
const AVPacket *pkt)
{
int ret = 0, i;
int got_output;
int64_t pkt_pts = AV_NOPTS_VALUE;
AVPacket avpkt;
if (ist->next_dts == AV_NOPTS_VALUE)
ist->next_dts = ist->dts;
if (ist->next_pts == AV_NOPTS_VALUE)
ist->next_pts = ist->pts;
if (pkt == NULL) {
/* EOF handling */
av_init_packet(&avpkt);
avpkt.data = NULL;
avpkt.size = 0;
goto handle_eof;
} else {
avpkt = *pkt;
}
if (pkt->dts != AV_NOPTS_VALUE) {
ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
}
if(pkt->pts != AV_NOPTS_VALUE)
pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
// while we have more to decode or while the decoder did output something on EOF
while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
int duration;
handle_eof:
ist->pts = ist->next_pts;
ist->dts = ist->next_dts;
if (avpkt.size && avpkt.size != pkt->size) {
av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
"Multiple frames in a packet from stream %d\n", pkt->stream_index);
ist->showed_multi_packet_warning = 1;
}
switch (ist->st->codec->codec_type) {
case AVMEDIA_TYPE_AUDIO:
ret = transcode_audio (ist, &avpkt, &got_output);
break;
case AVMEDIA_TYPE_VIDEO:
ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
if (avpkt.duration) {
duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
} else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
duration = ((int64_t)AV_TIME_BASE *
ist->st->codec->time_base.num * ticks) /
ist->st->codec->time_base.den;
} else
duration = 0;
if(ist->dts != AV_NOPTS_VALUE && duration) {
ist->next_dts += duration;
}else
ist->next_dts = AV_NOPTS_VALUE;
if (got_output)
ist->next_pts += duration; //FIXME the duration is not correct in some cases
break;
case AVMEDIA_TYPE_SUBTITLE:
ret = transcode_subtitles(ist, &avpkt, &got_output);
break;
default:
return -1;
}
if (ret < 0)
return ret;
avpkt.dts=
avpkt.pts= AV_NOPTS_VALUE;
// touch data and size only if not EOF
if (pkt) {
if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
ret = avpkt.size;
avpkt.data += ret;
avpkt.size -= ret;
}
if (!got_output) {
continue;
}
}
/* handle stream copy */
if (!ist->decoding_needed) {
rate_emu_sleep(ist);
ist->dts = ist->next_dts;
switch (ist->st->codec->codec_type) {
case AVMEDIA_TYPE_AUDIO:
ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
ist->st->codec->sample_rate;
break;
case AVMEDIA_TYPE_VIDEO:
if (pkt->duration) {
ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
} else if(ist->st->codec->time_base.num != 0) {
int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
ist->next_dts += ((int64_t)AV_TIME_BASE *
ist->st->codec->time_base.num * ticks) /
ist->st->codec->time_base.den;
}
break;
}
ist->pts = ist->dts;
ist->next_pts = ist->next_dts;
}
for (i = 0; pkt && i < nb_ostreams; i++) {
OutputStream *ost = &ost_table[i];
if (!check_output_constraints(ist, ost) || ost->encoding_needed)
continue;
do_streamcopy(ist, ost, pkt);
}
return 0;
}
static void print_sdp(OutputFile *output_files, int n)
{
char sdp[2048];
int i;
AVFormatContext **avc = av_malloc(sizeof(*avc) * n);
if (!avc)
exit_program(1);
for (i = 0; i < n; i++)
avc[i] = output_files[i].ctx;
av_sdp_create(avc, n, sdp, sizeof(sdp));
printf("SDP:\n%s\n", sdp);
fflush(stdout);
av_freep(&avc);
}
static void get_default_channel_layouts(OutputStream *ost, InputStream *ist)
{
char layout_name[256];
AVCodecContext *enc = ost->st->codec;
AVCodecContext *dec = ist->st->codec;
if (!dec->channel_layout) {
if (enc->channel_layout && dec->channels == enc->channels) {
dec->channel_layout = enc->channel_layout;
} else {
dec->channel_layout = av_get_default_channel_layout(dec->channels);
if (!dec->channel_layout) {
av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
"layout for Input Stream #%d.%d\n", ist->file_index,
ist->st->index);
exit_program(1);
}
}
av_get_channel_layout_string(layout_name, sizeof(layout_name),
dec->channels, dec->channel_layout);
av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
"#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
}
if (!enc->channel_layout) {
if (dec->channels == enc->channels) {
enc->channel_layout = dec->channel_layout;
return;
} else {
enc->channel_layout = av_get_default_channel_layout(enc->channels);
}
if (!enc->channel_layout) {
av_log(NULL, AV_LOG_FATAL, "Unable to find default channel layout "
"for Output Stream #%d.%d\n", ost->file_index,
ost->st->index);
exit_program(1);
}
av_get_channel_layout_string(layout_name, sizeof(layout_name),
enc->channels, enc->channel_layout);
av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Output Stream "
"#%d.%d : %s\n", ost->file_index, ost->st->index, layout_name);
}
}
static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
char *error, int error_len)
{
InputStream *ist = &input_streams[ist_index];
int i;
if (ist->decoding_needed) {
AVCodec *codec = ist->dec;
if (!codec) {
snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
return AVERROR(EINVAL);
}
ist->dr1 = codec->capabilities & CODEC_CAP_DR1;
if (codec->type == AVMEDIA_TYPE_VIDEO && ist->dr1) {
ist->st->codec->get_buffer = codec_get_buffer;
ist->st->codec->release_buffer = codec_release_buffer;
ist->st->codec->opaque = ist;
}
if (!av_dict_get(ist->opts, "threads", NULL, 0))
av_dict_set(&ist->opts, "threads", "auto", 0);
if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
ist->file_index, ist->st->index);
return AVERROR(EINVAL);
}
assert_codec_experimental(ist->st->codec, 0);
assert_avoptions(ist->opts);
if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
for (i = 0; i < nb_output_streams; i++) {
OutputStream *ost = &output_streams[i];
if (ost->source_index == ist_index) {
if (!ist->st->codec->channel_layout || !ost->st->codec->channel_layout)
get_default_channel_layouts(ost, ist);
break;
}
}
}
}
ist->dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
ist->next_pts = AV_NOPTS_VALUE;
ist->next_dts = AV_NOPTS_VALUE;
ist->is_start = 1;
return 0;
}
static int transcode_init(OutputFile *output_files, int nb_output_files,
InputFile *input_files, int nb_input_files)
{
int ret = 0, i, j, k;
AVFormatContext *oc;
AVCodecContext *codec, *icodec;
OutputStream *ost;
InputStream *ist;
char error[1024];
int want_sdp = 1;
/* init framerate emulation */
for (i = 0; i < nb_input_files; i++) {
InputFile *ifile = &input_files[i];
if (ifile->rate_emu)
for (j = 0; j < ifile->nb_streams; j++)
input_streams[j + ifile->ist_index].start = av_gettime();
}
/* output stream init */
for (i = 0; i < nb_output_files; i++) {
oc = output_files[i].ctx;
if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
av_dump_format(oc, i, oc->filename, 1);
av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
return AVERROR(EINVAL);
}
}
/* for each output stream, we compute the right encoding parameters */
for (i = 0; i < nb_output_streams; i++) {
ost = &output_streams[i];
oc = output_files[ost->file_index].ctx;
ist = &input_streams[ost->source_index];
if (ost->attachment_filename)
continue;
codec = ost->st->codec;
icodec = ist->st->codec;
ost->st->disposition = ist->st->disposition;
codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
codec->chroma_sample_location = icodec->chroma_sample_location;
if (ost->stream_copy) {
uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
if (extra_size > INT_MAX) {
return AVERROR(EINVAL);
}
/* if stream_copy is selected, no need to decode or encode */
codec->codec_id = icodec->codec_id;
codec->codec_type = icodec->codec_type;
if (!codec->codec_tag) {
if (!oc->oformat->codec_tag ||
av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
codec->codec_tag = icodec->codec_tag;
}
codec->bit_rate = icodec->bit_rate;
codec->rc_max_rate = icodec->rc_max_rate;
codec->rc_buffer_size = icodec->rc_buffer_size;
codec->field_order = icodec->field_order;
codec->extradata = av_mallocz(extra_size);
if (!codec->extradata) {
return AVERROR(ENOMEM);
}
memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
codec->extradata_size= icodec->extradata_size;
codec->time_base = ist->st->time_base;
/*
* Avi is a special case here because it supports variable fps but
* having the fps and timebase differe significantly adds quite some
* overhead
*/
if(!strcmp(oc->oformat->name, "avi")) {
if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
&& av_q2d(ist->st->time_base) < 1.0/500
|| copy_tb==0){
codec->time_base = icodec->time_base;
codec->time_base.num *= icodec->ticks_per_frame;
codec->time_base.den *= 2;
}
} else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
&& strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
&& strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
) {
if( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
&& av_q2d(ist->st->time_base) < 1.0/500
|| copy_tb==0){
codec->time_base = icodec->time_base;
codec->time_base.num *= icodec->ticks_per_frame;
}
}
av_reduce(&codec->time_base.num, &codec->time_base.den,
codec->time_base.num, codec->time_base.den, INT_MAX);
switch (codec->codec_type) {
case AVMEDIA_TYPE_AUDIO:
if (audio_volume != 256) {
av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
exit_program(1);
}
codec->channel_layout = icodec->channel_layout;
codec->sample_rate = icodec->sample_rate;
codec->channels = icodec->channels;
codec->frame_size = icodec->frame_size;
codec->audio_service_type = icodec->audio_service_type;
codec->block_align = icodec->block_align;
break;
case AVMEDIA_TYPE_VIDEO:
codec->pix_fmt = icodec->pix_fmt;
codec->width = icodec->width;
codec->height = icodec->height;
codec->has_b_frames = icodec->has_b_frames;
if (!codec->sample_aspect_ratio.num) {
codec->sample_aspect_ratio =
ost->st->sample_aspect_ratio =
ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
ist->st->codec->sample_aspect_ratio.num ?
ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
}
ost->st->avg_frame_rate = ist->st->avg_frame_rate;
break;
case AVMEDIA_TYPE_SUBTITLE:
codec->width = icodec->width;
codec->height = icodec->height;
break;
case AVMEDIA_TYPE_DATA:
case AVMEDIA_TYPE_ATTACHMENT:
break;
default:
abort();
}
} else {
if (!ost->enc)
ost->enc = avcodec_find_encoder(codec->codec_id);
ist->decoding_needed = 1;
ost->encoding_needed = 1;
switch (codec->codec_type) {
case AVMEDIA_TYPE_AUDIO:
ost->fifo = av_fifo_alloc(1024);
if (!ost->fifo) {
return AVERROR(ENOMEM);
}
if (!codec->sample_rate)
codec->sample_rate = icodec->sample_rate;
choose_sample_rate(ost->st, ost->enc);
codec->time_base = (AVRational){ 1, codec->sample_rate };
if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
codec->sample_fmt = icodec->sample_fmt;
choose_sample_fmt(ost->st, ost->enc);
if (ost->audio_channels_mapped) {
/* the requested output channel is set to the number of
* -map_channel only if no -ac are specified */
if (!codec->channels) {
codec->channels = ost->audio_channels_mapped;
codec->channel_layout = av_get_default_channel_layout(codec->channels);
if (!codec->channel_layout) {
av_log(NULL, AV_LOG_FATAL, "Unable to find an appropriate channel layout for requested number of channel\n");
exit_program(1);
}
}
/* fill unused channel mapping with -1 (which means a muted
* channel in case the number of output channels is bigger
* than the number of mapped channel) */
for (j = ost->audio_channels_mapped; j < FF_ARRAY_ELEMS(ost->audio_channels_map); j++)
ost->audio_channels_map[j] = -1;
} else if (!codec->channels) {
codec->channels = icodec->channels;
codec->channel_layout = icodec->channel_layout;
}
if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
codec->channel_layout = 0;
ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
ost->audio_resample |= codec->sample_fmt != icodec->sample_fmt
|| codec->channel_layout != icodec->channel_layout;
icodec->request_channels = codec->channels;
ost->resample_sample_fmt = icodec->sample_fmt;
ost->resample_sample_rate = icodec->sample_rate;
ost->resample_channels = icodec->channels;
break;
case AVMEDIA_TYPE_VIDEO:
if (codec->pix_fmt == PIX_FMT_NONE)
codec->pix_fmt = icodec->pix_fmt;
choose_pixel_fmt(ost->st, ost->enc);
if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
av_log(NULL, AV_LOG_FATAL, "Video pixel format is unknown, stream cannot be encoded\n");
exit_program(1);
}
if (!codec->width || !codec->height) {
codec->width = icodec->width;
codec->height = icodec->height;
}
ost->video_resample = codec->width != icodec->width ||
codec->height != icodec->height ||
codec->pix_fmt != icodec->pix_fmt;
if (ost->video_resample) {
codec->bits_per_raw_sample = frame_bits_per_raw_sample;
}
ost->resample_height = icodec->height;
ost->resample_width = icodec->width;
ost->resample_pix_fmt = icodec->pix_fmt;
if (!ost->frame_rate.num)
ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational) { 25, 1 };
if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
ost->frame_rate = ost->enc->supported_framerates[idx];
}
codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
&& (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
"Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
}
for (j = 0; j < ost->forced_kf_count; j++)
ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
AV_TIME_BASE_Q,
codec->time_base);
if (configure_video_filters(ist, ost)) {
av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
exit_program(1);
}
break;
case AVMEDIA_TYPE_SUBTITLE:
codec->time_base = (AVRational){1, 1000};
break;
default:
abort();
break;
}
/* two pass mode */
if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
char logfilename[1024];
FILE *f;
snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
i);
if (!strcmp(ost->enc->name, "libx264")) {
av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
} else {
if (codec->flags & CODEC_FLAG_PASS2) {
char *logbuffer;
size_t logbuffer_size;
if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
logfilename);
exit_program(1);
}
codec->stats_in = logbuffer;
}
if (codec->flags & CODEC_FLAG_PASS1) {
f = fopen(logfilename, "wb");
if (!f) {
av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
logfilename, strerror(errno));
exit_program(1);
}
ost->logfile = f;
}
}
}
}
}
/* open each encoder */
for (i = 0; i < nb_output_streams; i++) {
ost = &output_streams[i];
if (ost->encoding_needed) {
AVCodec *codec = ost->enc;
AVCodecContext *dec = input_streams[ost->source_index].st->codec;
if (!codec) {
snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
ret = AVERROR(EINVAL);
goto dump_format;
}
if (dec->subtitle_header) {
ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
if (!ost->st->codec->subtitle_header) {
ret = AVERROR(ENOMEM);
goto dump_format;
}
memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
}
if (!av_dict_get(ost->opts, "threads", NULL, 0))
av_dict_set(&ost->opts, "threads", "auto", 0);
if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
ost->file_index, ost->index);
ret = AVERROR(EINVAL);
goto dump_format;
}
assert_codec_experimental(ost->st->codec, 1);
assert_avoptions(ost->opts);
if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
" It takes bits/s as argument, not kbits/s\n");
extra_size += ost->st->codec->extradata_size;
if (ost->st->codec->me_threshold)
input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
}
}
/* init input streams */
for (i = 0; i < nb_input_streams; i++)
if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
goto dump_format;
/* discard unused programs */
for (i = 0; i < nb_input_files; i++) {
InputFile *ifile = &input_files[i];
for (j = 0; j < ifile->ctx->nb_programs; j++) {
AVProgram *p = ifile->ctx->programs[j];
int discard = AVDISCARD_ALL;
for (k = 0; k < p->nb_stream_indexes; k++)
if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
discard = AVDISCARD_DEFAULT;
break;
}
p->discard = discard;
}
}
/* open files and write file headers */
for (i = 0; i < nb_output_files; i++) {
oc = output_files[i].ctx;
oc->interrupt_callback = int_cb;
if (avformat_write_header(oc, &output_files[i].opts) < 0) {
snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
ret = AVERROR(EINVAL);
goto dump_format;
}
// assert_avoptions(output_files[i].opts);
if (strcmp(oc->oformat->name, "rtp")) {
want_sdp = 0;
}
}
dump_format:
/* dump the file output parameters - cannot be done before in case
of stream copy */
for (i = 0; i < nb_output_files; i++) {
av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
}
/* dump the stream mapping */
av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
for (i = 0; i < nb_output_streams; i++) {
ost = &output_streams[i];
if (ost->attachment_filename) {
/* an attached file */
av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
ost->attachment_filename, ost->file_index, ost->index);
continue;
}
av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
input_streams[ost->source_index].file_index,
input_streams[ost->source_index].st->index,
ost->file_index,
ost->index);
if (ost->audio_channels_mapped) {
av_log(NULL, AV_LOG_INFO, " [ch:");
for (j = 0; j < ost->audio_channels_mapped; j++)
if (ost->audio_channels_map[j] == -1)
av_log(NULL, AV_LOG_INFO, " M");
else
av_log(NULL, AV_LOG_INFO, " %d", ost->audio_channels_map[j]);
av_log(NULL, AV_LOG_INFO, "]");
}
if (ost->sync_ist != &input_streams[ost->source_index])
av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
ost->sync_ist->file_index,
ost->sync_ist->st->index);
if (ost->stream_copy)
av_log(NULL, AV_LOG_INFO, " (copy)");
else
av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ?
input_streams[ost->source_index].dec->name : "?",
ost->enc ? ost->enc->name : "?");
av_log(NULL, AV_LOG_INFO, "\n");
}
if (ret) {
av_log(NULL, AV_LOG_ERROR, "%s\n", error);
return ret;
}
if (want_sdp) {
print_sdp(output_files, nb_output_files);
}
return 0;
}
/*
* The following code is the main loop of the file converter
*/
static int transcode(OutputFile *output_files, int nb_output_files,
InputFile *input_files, int nb_input_files)
{
int ret, i;
AVFormatContext *is, *os;
OutputStream *ost;
InputStream *ist;
uint8_t *no_packet;
int no_packet_count = 0;
int64_t timer_start;
int key;
if (!(no_packet = av_mallocz(nb_input_files)))
exit_program(1);
ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
if (ret < 0)
goto fail;
if (!using_stdin) {
av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
}
timer_start = av_gettime();
for (; received_sigterm == 0;) {
int file_index, ist_index;
AVPacket pkt;
int64_t ipts_min;
double opts_min;
int64_t cur_time= av_gettime();
ipts_min = INT64_MAX;
opts_min = 1e100;
/* if 'q' pressed, exits */
if (!using_stdin) {
static int64_t last_time;
if (received_nb_signals)
break;
/* read_key() returns 0 on EOF */
if(cur_time - last_time >= 100000 && !run_as_daemon){
key = read_key();
last_time = cur_time;
}else
key = -1;
if (key == 'q')
break;
if (key == '+') av_log_set_level(av_log_get_level()+10);
if (key == '-') av_log_set_level(av_log_get_level()-10);
if (key == 's') qp_hist ^= 1;
if (key == 'h'){
if (do_hex_dump){
do_hex_dump = do_pkt_dump = 0;
} else if(do_pkt_dump){
do_hex_dump = 1;
} else
do_pkt_dump = 1;
av_log_set_level(AV_LOG_DEBUG);
}
if (key == 'c' || key == 'C'){
char buf[4096], target[64], command[256], arg[256] = {0};
double time;
int k, n = 0;
fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
i = 0;
while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
if (k > 0)
buf[i++] = k;
buf[i] = 0;
if (k > 0 &&
(n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
target, time, command, arg);
for (i = 0; i < nb_output_streams; i++) {
ost = &output_streams[i];
if (ost->graph) {
if (time < 0) {
ret = avfilter_graph_send_command(ost->graph, target, command, arg, buf, sizeof(buf),
key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
} else {
ret = avfilter_graph_queue_command(ost->graph, target, command, arg, 0, time);
}
}
}
} else {
av_log(NULL, AV_LOG_ERROR,
"Parse error, at least 3 arguments were expected, "
"only %d given in string '%s'\n", n, buf);
}
}
if (key == 'd' || key == 'D'){
int debug=0;
if(key == 'D') {
debug = input_streams[0].st->codec->debug<<1;
if(!debug) debug = 1;
while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
debug += debug;
}else
if(scanf("%d", &debug)!=1)
fprintf(stderr,"error parsing debug value\n");
for(i=0;i<nb_input_streams;i++) {
input_streams[i].st->codec->debug = debug;
}
for(i=0;i<nb_output_streams;i++) {
ost = &output_streams[i];
ost->st->codec->debug = debug;
}
if(debug) av_log_set_level(AV_LOG_DEBUG);
fprintf(stderr,"debug=%d\n", debug);
}
if (key == '?'){
fprintf(stderr, "key function\n"
"? show this help\n"
"+ increase verbosity\n"
"- decrease verbosity\n"
"c Send command to filtergraph\n"
"D cycle through available debug modes\n"
"h dump packets/hex press to cycle through the 3 states\n"
"q quit\n"
"s Show QP histogram\n"
);
}
}
/* select the stream that we must read now by looking at the
smallest output pts */
file_index = -1;
for (i = 0; i < nb_output_streams; i++) {
OutputFile *of;
int64_t ipts;
double opts;
ost = &output_streams[i];
of = &output_files[ost->file_index];
os = output_files[ost->file_index].ctx;
ist = &input_streams[ost->source_index];
if (ost->is_past_recording_time || no_packet[ist->file_index] ||
(os->pb && avio_tell(os->pb) >= of->limit_filesize))
continue;
opts = ost->st->pts.val * av_q2d(ost->st->time_base);
ipts = ist->pts;
if (!input_files[ist->file_index].eof_reached) {
if (ipts < ipts_min) {
ipts_min = ipts;
if (input_sync)
file_index = ist->file_index;
}
if (opts < opts_min) {
opts_min = opts;
if (!input_sync) file_index = ist->file_index;
}
}
if (ost->frame_number >= ost->max_frames) {
int j;
for (j = 0; j < of->ctx->nb_streams; j++)
output_streams[of->ost_index + j].is_past_recording_time = 1;
continue;
}
}
/* if none, if is finished */
if (file_index < 0) {
if (no_packet_count) {
no_packet_count = 0;
memset(no_packet, 0, nb_input_files);
usleep(10000);
continue;
}
break;
}
/* read a frame from it and output it in the fifo */
is = input_files[file_index].ctx;
ret = av_read_frame(is, &pkt);
if (ret == AVERROR(EAGAIN)) {
no_packet[file_index] = 1;
no_packet_count++;
continue;
}
if (ret < 0) {
input_files[file_index].eof_reached = 1;
if (opt_shortest)
break;
else
continue;
}
no_packet_count = 0;
memset(no_packet, 0, nb_input_files);
if (do_pkt_dump) {
av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
is->streams[pkt.stream_index]);
}
/* the following test is needed in case new streams appear
dynamically in stream : we ignore them */
if (pkt.stream_index >= input_files[file_index].nb_streams)
goto discard_packet;
ist_index = input_files[file_index].ist_index + pkt.stream_index;
ist = &input_streams[ist_index];
if (ist->discard)
goto discard_packet;
if (pkt.dts != AV_NOPTS_VALUE)
pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
if (pkt.pts != AV_NOPTS_VALUE)
pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
if (pkt.pts != AV_NOPTS_VALUE)
pkt.pts *= ist->ts_scale;
if (pkt.dts != AV_NOPTS_VALUE)
pkt.dts *= ist->ts_scale;
if (debug_ts) {
av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
"next_pts:%s next_pts_time:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%"PRId64"\n",
ist_index, av_get_media_type_string(ist->st->codec->codec_type),
av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &ist->st->time_base),
av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
input_files[ist->file_index].ts_offset);
}
if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE && !copy_ts) {
int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
int64_t delta = pkt_dts - ist->next_dts;
if (is->iformat->flags & AVFMT_TS_DISCONT) {
if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
(delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
pkt_dts+1<ist->pts){
input_files[ist->file_index].ts_offset -= delta;
av_log(NULL, AV_LOG_DEBUG,
"timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
delta, input_files[ist->file_index].ts_offset);
pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
if (pkt.pts != AV_NOPTS_VALUE)
pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
}
} else {
if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
(delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
pkt_dts+1<ist->pts){
av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
pkt.dts = AV_NOPTS_VALUE;
}
if (pkt.pts != AV_NOPTS_VALUE){
int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
delta = pkt_pts - ist->next_dts;
if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
(delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
pkt_pts+1<ist->pts) {
av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
pkt.pts = AV_NOPTS_VALUE;
}
}
}
}
// fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
if (output_packet(ist, output_streams, nb_output_streams, &pkt) < 0) {
av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
ist->file_index, ist->st->index);
if (exit_on_error)
exit_program(1);
av_free_packet(&pkt);
continue;
}
discard_packet:
av_free_packet(&pkt);
/* dump report by using the output first video and audio streams */
print_report(output_files, output_streams, nb_output_streams, 0, timer_start, cur_time);
}
/* at the end of stream, we must flush the decoder buffers */
for (i = 0; i < nb_input_streams; i++) {
ist = &input_streams[i];
if (ist->decoding_needed) {
output_packet(ist, output_streams, nb_output_streams, NULL);
}
}
flush_encoders(output_streams, nb_output_streams);
term_exit();
/* write the trailer if needed and close file */
for (i = 0; i < nb_output_files; i++) {
os = output_files[i].ctx;
av_write_trailer(os);
}
/* dump report by using the first video and audio streams */
print_report(output_files, output_streams, nb_output_streams, 1, timer_start, av_gettime());
/* close each encoder */
for (i = 0; i < nb_output_streams; i++) {
ost = &output_streams[i];
if (ost->encoding_needed) {
av_freep(&ost->st->codec->stats_in);
avcodec_close(ost->st->codec);
}
avfilter_graph_free(&ost->graph);
}
/* close each decoder */
for (i = 0; i < nb_input_streams; i++) {
ist = &input_streams[i];
if (ist->decoding_needed) {
avcodec_close(ist->st->codec);
}
}
/* finished ! */
ret = 0;
fail:
av_freep(&no_packet);
if (output_streams) {
for (i = 0; i < nb_output_streams; i++) {
ost = &output_streams[i];
if (ost) {
if (ost->stream_copy)
av_freep(&ost->st->codec->extradata);
if (ost->logfile) {
fclose(ost->logfile);
ost->logfile = NULL;
}
av_fifo_free(ost->fifo); /* works even if fifo is not
initialized but set to zero */
av_freep(&ost->st->codec->subtitle_header);
av_free(ost->forced_kf_pts);
swr_free(&ost->swr);
av_dict_free(&ost->opts);
}
}
}
return ret;
}
static int opt_frame_crop(const char *opt, const char *arg)
{
av_log(NULL, AV_LOG_FATAL, "Option '%s' has been removed, use the crop filter instead\n", opt);
return AVERROR(EINVAL);
}
static int opt_pad(const char *opt, const char *arg)
{
av_log(NULL, AV_LOG_FATAL, "Option '%s' has been removed, use the pad filter instead\n", opt);
return -1;
}
static int opt_video_channel(const char *opt, const char *arg)
{
av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
return opt_default("channel", arg);
}
static int opt_video_standard(const char *opt, const char *arg)
{
av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
return opt_default("standard", arg);
}
static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
{
audio_codec_name = arg;
return parse_option(o, "codec:a", arg, options);
}
static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
{
video_codec_name = arg;
return parse_option(o, "codec:v", arg, options);
}
static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
{
subtitle_codec_name = arg;
return parse_option(o, "codec:s", arg, options);
}
static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
{
return parse_option(o, "codec:d", arg, options);
}
static int opt_map(OptionsContext *o, const char *opt, const char *arg)
{
StreamMap *m = NULL;
int i, negative = 0, file_idx;
int sync_file_idx = -1, sync_stream_idx = 0;
char *p, *sync;
char *map;
if (*arg == '-') {
negative = 1;
arg++;
}
map = av_strdup(arg);
/* parse sync stream first, just pick first matching stream */
if (sync = strchr(map, ',')) {
*sync = 0;
sync_file_idx = strtol(sync + 1, &sync, 0);
if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
exit_program(1);
}
if (*sync)
sync++;
for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
if (check_stream_specifier(input_files[sync_file_idx].ctx,
input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
sync_stream_idx = i;
break;
}
if (i == input_files[sync_file_idx].nb_streams) {
av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
"match any streams.\n", arg);
exit_program(1);
}
}
file_idx = strtol(map, &p, 0);
if (file_idx >= nb_input_files || file_idx < 0) {
av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
exit_program(1);
}
if (negative)
/* disable some already defined maps */
for (i = 0; i < o->nb_stream_maps; i++) {
m = &o->stream_maps[i];
if (file_idx == m->file_index &&
check_stream_specifier(input_files[m->file_index].ctx,
input_files[m->file_index].ctx->streams[m->stream_index],
*p == ':' ? p + 1 : p) > 0)
m->disabled = 1;
}
else
for (i = 0; i < input_files[file_idx].nb_streams; i++) {
if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
*p == ':' ? p + 1 : p) <= 0)
continue;
o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
&o->nb_stream_maps, o->nb_stream_maps + 1);
m = &o->stream_maps[o->nb_stream_maps - 1];
m->file_index = file_idx;
m->stream_index = i;
if (sync_file_idx >= 0) {
m->sync_file_index = sync_file_idx;
m->sync_stream_index = sync_stream_idx;
} else {
m->sync_file_index = file_idx;
m->sync_stream_index = i;
}
}
if (!m) {
av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
exit_program(1);
}
av_freep(&map);
return 0;
}
static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
{
o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
&o->nb_attachments, o->nb_attachments + 1);
o->attachments[o->nb_attachments - 1] = arg;
return 0;
}
static int opt_map_channel(OptionsContext *o, const char *opt, const char *arg)
{
int n;
AVStream *st;
AudioChannelMap *m;
o->audio_channel_maps =
grow_array(o->audio_channel_maps, sizeof(*o->audio_channel_maps),
&o->nb_audio_channel_maps, o->nb_audio_channel_maps + 1);
m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
/* muted channel syntax */
n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
if ((n == 1 || n == 3) && m->channel_idx == -1) {
m->file_idx = m->stream_idx = -1;
if (n == 1)
m->ofile_idx = m->ostream_idx = -1;
return 0;
}
/* normal syntax */
n = sscanf(arg, "%d.%d.%d:%d.%d",
&m->file_idx, &m->stream_idx, &m->channel_idx,
&m->ofile_idx, &m->ostream_idx);
if (n != 3 && n != 5) {
av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
"[file.stream.channel|-1][:syncfile:syncstream]\n");
exit_program(1);
}
if (n != 5) // only file.stream.channel specified
m->ofile_idx = m->ostream_idx = -1;
/* check input */
if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
m->file_idx);
exit_program(1);
}
if (m->stream_idx < 0 ||
m->stream_idx >= input_files[m->file_idx].nb_streams) {
av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
m->file_idx, m->stream_idx);
exit_program(1);
}
st = input_files[m->file_idx].ctx->streams[m->stream_idx];
if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
m->file_idx, m->stream_idx);
exit_program(1);
}
if (m->channel_idx < 0 || m->channel_idx >= st->codec->channels) {
av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
m->file_idx, m->stream_idx, m->channel_idx);
exit_program(1);
}
return 0;
}
/**
* Parse a metadata specifier in arg.
* @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
* @param index for type c/p, chapter/program index is written here
* @param stream_spec for type s, the stream specifier is written here
*/
static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
{
if (*arg) {
*type = *arg;
switch (*arg) {
case 'g':
break;
case 's':
if (*(++arg) && *arg != ':') {
av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
exit_program(1);
}
*stream_spec = *arg == ':' ? arg + 1 : "";
break;
case 'c':
case 'p':
if (*(++arg) == ':')
*index = strtol(++arg, NULL, 0);
break;
default:
av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
exit_program(1);
}
} else
*type = 'g';
}
static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
{
AVDictionary **meta_in = NULL;
AVDictionary **meta_out = NULL;
int i, ret = 0;
char type_in, type_out;
const char *istream_spec = NULL, *ostream_spec = NULL;
int idx_in = 0, idx_out = 0;
parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
if (!ic) {
if (type_out == 'g' || !*outspec)
o->metadata_global_manual = 1;
if (type_out == 's' || !*outspec)
o->metadata_streams_manual = 1;
if (type_out == 'c' || !*outspec)
o->metadata_chapters_manual = 1;
return 0;
}
if (type_in == 'g' || type_out == 'g')
o->metadata_global_manual = 1;
if (type_in == 's' || type_out == 's')
o->metadata_streams_manual = 1;
if (type_in == 'c' || type_out == 'c')
o->metadata_chapters_manual = 1;
#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
if ((index) < 0 || (index) >= (nb_elems)) {\
av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
(desc), (index));\
exit_program(1);\
}
#define SET_DICT(type, meta, context, index)\
switch (type) {\
case 'g':\
meta = &context->metadata;\
break;\
case 'c':\
METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
meta = &context->chapters[index]->metadata;\
break;\
case 'p':\
METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
meta = &context->programs[index]->metadata;\
break;\
}\
SET_DICT(type_in, meta_in, ic, idx_in);
SET_DICT(type_out, meta_out, oc, idx_out);
/* for input streams choose first matching stream */
if (type_in == 's') {
for (i = 0; i < ic->nb_streams; i++) {
if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
meta_in = &ic->streams[i]->metadata;
break;
} else if (ret < 0)
exit_program(1);
}
if (!meta_in) {
av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
exit_program(1);
}
}
if (type_out == 's') {
for (i = 0; i < oc->nb_streams; i++) {
if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
meta_out = &oc->streams[i]->metadata;
av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
} else if (ret < 0)
exit_program(1);
}
} else
av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
return 0;
}
static int opt_recording_timestamp(OptionsContext *o, const char *opt, const char *arg)
{
char buf[128];
int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
struct tm time = *gmtime((time_t*)&recording_timestamp);
strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
parse_option(o, "metadata", buf, options);
av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
"tag instead.\n", opt);
return 0;
}
static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
{
const char *codec_string = encoder ? "encoder" : "decoder";
AVCodec *codec;
codec = encoder ?
avcodec_find_encoder_by_name(name) :
avcodec_find_decoder_by_name(name);
if (!codec) {
av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
exit_program(1);
}
if (codec->type != type) {
av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
exit_program(1);
}
return codec;
}
static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
{
char *codec_name = NULL;
MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
if (codec_name) {
AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
st->codec->codec_id = codec->id;
return codec;
} else
return avcodec_find_decoder(st->codec->codec_id);
}
/**
* Add all the streams from the given input file to the global
* list of input streams.
*/
static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
{
int i;
char *next, *codec_tag = NULL;
for (i = 0; i < ic->nb_streams; i++) {
AVStream *st = ic->streams[i];
AVCodecContext *dec = st->codec;
InputStream *ist;
input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
ist = &input_streams[nb_input_streams - 1];
ist->st = st;
ist->file_index = nb_input_files;
ist->discard = 1;
st->discard = AVDISCARD_ALL;
ist->opts = filter_codec_opts(codec_opts, choose_decoder(o, ic, st), ic, st);
ist->ts_scale = 1.0;
MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
if (codec_tag) {
uint32_t tag = strtol(codec_tag, &next, 0);
if (*next)
tag = AV_RL32(codec_tag);
st->codec->codec_tag = tag;
}
ist->dec = choose_decoder(o, ic, st);
switch (dec->codec_type) {
case AVMEDIA_TYPE_VIDEO:
if(!ist->dec)
ist->dec = avcodec_find_decoder(dec->codec_id);
if (dec->lowres) {
dec->flags |= CODEC_FLAG_EMU_EDGE;
}
break;
case AVMEDIA_TYPE_AUDIO:
case AVMEDIA_TYPE_DATA:
case AVMEDIA_TYPE_SUBTITLE:
if(!ist->dec)
ist->dec = avcodec_find_decoder(dec->codec_id);
break;
case AVMEDIA_TYPE_ATTACHMENT:
case AVMEDIA_TYPE_UNKNOWN:
break;
default:
abort();
}
}
}
static void assert_file_overwrite(const char *filename)
{
if ((!file_overwrite || no_file_overwrite) &&
(strchr(filename, ':') == NULL || filename[1] == ':' ||
av_strstart(filename, "file:", NULL))) {
if (avio_check(filename, 0) == 0) {
if (!using_stdin && (!no_file_overwrite || file_overwrite)) {
fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
fflush(stderr);
term_exit();
signal(SIGINT, SIG_DFL);
if (!read_yesno()) {
av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
exit_program(1);
}
term_init();
}
else {
av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
exit_program(1);
}
}
}
}
static void dump_attachment(AVStream *st, const char *filename)
{
int ret;
AVIOContext *out = NULL;
AVDictionaryEntry *e;
if (!st->codec->extradata_size) {
av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
nb_input_files - 1, st->index);
return;
}
if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
filename = e->value;
if (!*filename) {
av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
"in stream #%d:%d.\n", nb_input_files - 1, st->index);
exit_program(1);
}
assert_file_overwrite(filename);
if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
filename);
exit_program(1);
}
avio_write(out, st->codec->extradata, st->codec->extradata_size);
avio_flush(out);
avio_close(out);
}
static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
{
AVFormatContext *ic;
AVInputFormat *file_iformat = NULL;
int err, i, ret;
int64_t timestamp;
uint8_t buf[128];
AVDictionary **opts;
int orig_nb_streams; // number of streams before avformat_find_stream_info
if (o->format) {
if (!(file_iformat = av_find_input_format(o->format))) {
av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
exit_program(1);
}
}
if (!strcmp(filename, "-"))
filename = "pipe:";
using_stdin |= !strncmp(filename, "pipe:", 5) ||
!strcmp(filename, "/dev/stdin");
/* get default parameters from command line */
ic = avformat_alloc_context();
if (!ic) {
print_error(filename, AVERROR(ENOMEM));
exit_program(1);
}
if (o->nb_audio_sample_rate) {
snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
av_dict_set(&format_opts, "sample_rate", buf, 0);
}
if (o->nb_audio_channels) {
snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
av_dict_set(&format_opts, "channels", buf, 0);
}
if (o->nb_frame_rates) {
av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
}
if (o->nb_frame_sizes) {
av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
}
if (o->nb_frame_pix_fmts)
av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
ic->video_codec_id = video_codec_name ?
find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0)->id : CODEC_ID_NONE;
ic->audio_codec_id = audio_codec_name ?
find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0)->id : CODEC_ID_NONE;
ic->subtitle_codec_id= subtitle_codec_name ?
find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : CODEC_ID_NONE;
ic->flags |= AVFMT_FLAG_NONBLOCK;
ic->interrupt_callback = int_cb;
/* open the input file with generic avformat function */
err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
if (err < 0) {
print_error(filename, err);
exit_program(1);
}
assert_avoptions(format_opts);
/* apply forced codec ids */
for (i = 0; i < ic->nb_streams; i++)
choose_decoder(o, ic, ic->streams[i]);
/* Set AVCodecContext options for avformat_find_stream_info */
opts = setup_find_stream_info_opts(ic, codec_opts);
orig_nb_streams = ic->nb_streams;
/* If not enough info to get the stream parameters, we decode the
first frames to get it. (used in mpeg case for example) */
ret = avformat_find_stream_info(ic, opts);
if (ret < 0) {
av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
avformat_close_input(&ic);
exit_program(1);
}
timestamp = o->start_time;
/* add the stream start time */
if (ic->start_time != AV_NOPTS_VALUE)
timestamp += ic->start_time;
/* if seeking requested, we execute it */
if (o->start_time != 0) {
ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
if (ret < 0) {
av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
filename, (double)timestamp / AV_TIME_BASE);
}
}
/* update the current parameters so that they match the one of the input stream */
add_input_streams(o, ic);
/* dump the file content */
av_dump_format(ic, nb_input_files, filename, 0);
input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
input_files[nb_input_files - 1].ctx = ic;
input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
input_files[nb_input_files - 1].ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
input_files[nb_input_files - 1].rate_emu = o->rate_emu;
for (i = 0; i < o->nb_dump_attachment; i++) {
int j;
for (j = 0; j < ic->nb_streams; j++) {
AVStream *st = ic->streams[j];
if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
dump_attachment(st, o->dump_attachment[i].u.str);
}
}
for (i = 0; i < orig_nb_streams; i++)
av_dict_free(&opts[i]);
av_freep(&opts);
reset_options(o, 1);
return 0;
}
static void parse_forced_key_frames(char *kf, OutputStream *ost)
{
char *p;
int n = 1, i;
for (p = kf; *p; p++)
if (*p == ',')
n++;
ost->forced_kf_count = n;
ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
if (!ost->forced_kf_pts) {
av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
exit_program(1);
}
for (i = 0; i < n; i++) {
p = i ? strchr(p, ',') + 1 : kf;
ost->forced_kf_pts[i] = parse_time_or_die("force_key_frames", p, 1);
}
}
static uint8_t *get_line(AVIOContext *s)
{
AVIOContext *line;
uint8_t *buf;
char c;
if (avio_open_dyn_buf(&line) < 0) {
av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
exit_program(1);
}
while ((c = avio_r8(s)) && c != '\n')
avio_w8(line, c);
avio_w8(line, 0);
avio_close_dyn_buf(line, &buf);
return buf;
}
static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
{