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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,237 @@ | ||
| /***************************************************************************** | ||
| * avi.c: x264 avi output module (using libavformat) | ||
| ***************************************************************************** | ||
| * Copyright (C) 2003-2014 x264 project | ||
| * | ||
| * Authors: Anton Mitrofanov <BugMaster@narod.ru> | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation; either version 2 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program 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 General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program; if not, write to the Free Software | ||
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. | ||
| *****************************************************************************/ | ||
|
|
||
| #include "output.h" | ||
| #undef DECLARE_ALIGNED | ||
| #include <libavformat/avformat.h> | ||
|
|
||
| typedef struct | ||
| { | ||
| AVFormatContext *mux_fc; | ||
| AVStream *video_stm; | ||
| uint8_t *data; | ||
| unsigned d_max; | ||
| unsigned d_cur; | ||
| } avi_hnd_t; | ||
|
|
||
| static int close_file( hnd_t handle, int64_t largest_pts, int64_t second_largest_pts ) | ||
| { | ||
| avi_hnd_t *h = handle; | ||
|
|
||
| if( !h ) | ||
| return 0; | ||
|
|
||
| if( h->data ) | ||
| { | ||
| free( h->data ); | ||
| h->data = NULL; | ||
| } | ||
|
|
||
| if( h->mux_fc && h->video_stm ) | ||
| { | ||
| av_write_trailer( h->mux_fc ); | ||
| av_freep( &h->video_stm->codec->extradata ); | ||
| av_freep( &h->video_stm->codec ); | ||
| av_freep( &h->video_stm ); | ||
| } | ||
|
|
||
| if( h->mux_fc && h->mux_fc->pb ) | ||
| { | ||
| avio_close( h->mux_fc->pb ); | ||
| h->mux_fc->pb = NULL; | ||
| } | ||
|
|
||
| if( h->mux_fc ) | ||
| av_freep( &h->mux_fc ); | ||
|
|
||
| free( h ); | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| static int open_file( char *psz_filename, hnd_t *p_handle, cli_output_opt_t *opt ) | ||
| { | ||
| avi_hnd_t *h; | ||
| AVOutputFormat *mux_fmt; | ||
|
|
||
| *p_handle = NULL; | ||
|
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||
| FILE *fh = x264_fopen( psz_filename, "w" ); | ||
| if( !fh ) | ||
| return -1; | ||
| int b_regular = x264_is_regular_file( fh ); | ||
| fclose( fh ); | ||
| FAIL_IF_ERR( !b_regular, "avi", "AVI output is incompatible with non-regular file `%s'\n", psz_filename ) | ||
|
|
||
| if( !(h = malloc( sizeof(avi_hnd_t) )) ) | ||
| return -1; | ||
| memset( h, 0, sizeof(avi_hnd_t) ); | ||
|
|
||
| av_register_all(); | ||
| mux_fmt = av_guess_format( "avi", NULL, NULL ); | ||
| if( !mux_fmt ) | ||
| { | ||
| close_file( h, 0, 0 ); | ||
| return -1; | ||
| } | ||
|
|
||
| h->mux_fc = avformat_alloc_context(); | ||
| if( !h->mux_fc ) | ||
| { | ||
| close_file( h, 0, 0 ); | ||
| return -1; | ||
| } | ||
| h->mux_fc->oformat = mux_fmt; | ||
| snprintf( h->mux_fc->filename, sizeof(h->mux_fc->filename), "%s", psz_filename ); | ||
|
|
||
| if( avio_open( &h->mux_fc->pb, psz_filename, AVIO_FLAG_WRITE ) < 0 ) | ||
| { | ||
| close_file( h, 0, 0 ); | ||
| return -1; | ||
| } | ||
|
|
||
| *p_handle = h; | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| static int set_param( hnd_t handle, x264_param_t *p_param ) | ||
| { | ||
| avi_hnd_t *h = handle; | ||
| AVCodecContext *c; | ||
|
|
||
| if( !h->mux_fc || h->video_stm ) | ||
| return -1; | ||
|
|
||
| h->video_stm = avformat_new_stream( h->mux_fc, 0 ); | ||
| if( !h->video_stm ) | ||
| return -1; | ||
|
|
||
| c = h->video_stm->codec; | ||
| c->flags |= p_param->b_repeat_headers ? 0 : CODEC_FLAG_GLOBAL_HEADER; | ||
| c->time_base.num = p_param->i_timebase_num; | ||
| c->time_base.den = p_param->i_timebase_den; | ||
| c->width = p_param->i_width; | ||
| c->height = p_param->i_height; | ||
| c->pix_fmt = PIX_FMT_YUV420P; | ||
| c->codec_type = AVMEDIA_TYPE_VIDEO; | ||
| c->codec_id = CODEC_ID_H264; | ||
| c->codec_tag = MKTAG('H','2','6','4'); | ||
|
|
||
| if( !(c->flags & CODEC_FLAG_GLOBAL_HEADER) && avformat_write_header( h->mux_fc, NULL ) ) | ||
| return -1; | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| static int write_buffer( avi_hnd_t *h, uint8_t *p_nalu, int i_size ) | ||
| { | ||
| unsigned ns = h->d_cur + i_size; | ||
|
|
||
| if( !h->data || ns > h->d_max ) | ||
| { | ||
| void *dp; | ||
| unsigned dn = 16; | ||
|
|
||
| while( ns > dn ) | ||
| dn <<= 1; | ||
|
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| dp = realloc( h->data, dn ); | ||
| if( !dp ) | ||
| return -1; | ||
|
|
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| h->data = dp; | ||
| h->d_max = dn; | ||
| } | ||
|
|
||
| memcpy( h->data + h->d_cur, p_nalu, i_size ); | ||
| h->d_cur = ns; | ||
|
|
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| return i_size; | ||
| } | ||
|
|
||
| static int write_headers( hnd_t handle, x264_nal_t *p_nal ) | ||
| { | ||
| avi_hnd_t *h = handle; | ||
| AVCodecContext *c; | ||
| int i_size = p_nal[0].i_payload + p_nal[1].i_payload + p_nal[2].i_payload; | ||
|
|
||
| if( !h->mux_fc || !h->video_stm ) | ||
| return -1; | ||
|
|
||
| c = h->video_stm->codec; | ||
| if( c->flags & CODEC_FLAG_GLOBAL_HEADER ) | ||
| { | ||
| c->extradata_size = i_size - p_nal[2].i_payload; | ||
| av_freep( &c->extradata ); | ||
| c->extradata = av_malloc( c->extradata_size ); | ||
| if( !c->extradata ) | ||
| return -1; | ||
| /* Write the SPS/PPS to the extradata */ | ||
| memcpy( c->extradata, p_nal[0].p_payload, c->extradata_size ); | ||
| /* Write the SEI as part of the first frame */ | ||
| if( write_buffer( h, p_nal[2].p_payload, p_nal[2].i_payload ) < 0 ) | ||
| return -1; | ||
| if( avformat_write_header( h->mux_fc, NULL ) ) | ||
| return -1; | ||
| } | ||
| else | ||
| if( write_buffer( h, p_nal[0].p_payload, i_size ) < 0 ) | ||
| return -1; | ||
|
|
||
| return i_size; | ||
| } | ||
|
|
||
| static int write_frame( hnd_t handle, uint8_t *p_nalu, int i_size, x264_picture_t *p_picture ) | ||
| { | ||
| avi_hnd_t *h = handle; | ||
| AVPacket pkt; | ||
|
|
||
| if( !h->mux_fc || !h->video_stm ) | ||
| return -1; | ||
|
|
||
| av_init_packet(&pkt); | ||
| pkt.stream_index = h->video_stm->index; | ||
| pkt.flags |= p_picture->b_keyframe ? AV_PKT_FLAG_KEY : 0; | ||
| if( h->d_cur ) | ||
| { | ||
| if( write_buffer( h, p_nalu, i_size ) < 0 ) | ||
| return -1; | ||
| pkt.data = h->data; | ||
| pkt.size = h->d_cur; | ||
| } | ||
| else | ||
| { | ||
| pkt.data = p_nalu; | ||
| pkt.size = i_size; | ||
| } | ||
| pkt.pts = AV_NOPTS_VALUE; //av_rescale_q( p_picture->i_pts, h->video_stm->codec->time_base, h->video_stm->time_base ); | ||
| pkt.dts = AV_NOPTS_VALUE; //av_rescale_q( p_picture->i_dts, h->video_stm->codec->time_base, h->video_stm->time_base ); | ||
| if( av_interleaved_write_frame( h->mux_fc, &pkt ) ) | ||
| return -1; | ||
|
|
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| h->d_cur = 0; | ||
|
|
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| return i_size; | ||
| } | ||
|
|
||
| const cli_output_t avi_output = { open_file, set_param, write_headers, write_frame, close_file }; |
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