1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2001, 2002 VideoLAN
5 * $Id: transcode.c,v 1.31 2003/08/26 18:01:16 fenrir Exp $
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
31 #include <vlc/input.h>
35 #ifdef HAVE_FFMPEG_AVCODEC_H
36 # include <ffmpeg/avcodec.h>
42 #ifdef HAVE_VORBIS_VORBISENC_H
43 # include <vorbis/vorbisenc.h>
44 # ifndef OV_ECTL_RATEMANAGE_AVG
45 # define OV_ECTL_RATEMANAGE_AVG 0x0
49 /*****************************************************************************
51 *****************************************************************************/
52 static int Open ( vlc_object_t * );
53 static void Close ( vlc_object_t * );
55 static sout_stream_id_t *Add ( sout_stream_t *, sout_format_t * );
56 static int Del ( sout_stream_t *, sout_stream_id_t * );
57 static int Send( sout_stream_t *, sout_stream_id_t *, sout_buffer_t* );
59 static int transcode_audio_ffmpeg_new ( sout_stream_t *, sout_stream_id_t * );
60 static void transcode_audio_ffmpeg_close ( sout_stream_t *, sout_stream_id_t * );
61 static int transcode_audio_ffmpeg_process( sout_stream_t *, sout_stream_id_t *, sout_buffer_t *, sout_buffer_t ** );
63 static int transcode_video_ffmpeg_new ( sout_stream_t *, sout_stream_id_t * );
64 static void transcode_video_ffmpeg_close ( sout_stream_t *, sout_stream_id_t * );
65 static int transcode_video_ffmpeg_process( sout_stream_t *, sout_stream_id_t *, sout_buffer_t *, sout_buffer_t ** );
67 static int transcode_video_ffmpeg_getframebuf( struct AVCodecContext *, AVFrame *);
69 /*****************************************************************************
71 *****************************************************************************/
73 set_description( _("Transcode stream") );
74 set_capability( "sout stream", 50 );
75 add_shortcut( "transcode" );
76 set_callbacks( Open, Close );
79 struct sout_stream_sys_t
83 vlc_fourcc_t i_acodec; /* codec audio (0 if not transcode) */
88 vlc_fourcc_t i_vcodec; /* " video " " " " */
98 vlc_bool_t b_deinterlace;
106 mtime_t i_output_pts;
107 mtime_t i_last_ref_pts;
109 mtime_t i_buggy_pts_detect;
112 /*****************************************************************************
114 *****************************************************************************/
115 static int Open( vlc_object_t *p_this )
117 sout_stream_t *p_stream = (sout_stream_t*)p_this;
118 sout_stream_sys_t *p_sys;
121 p_sys = malloc( sizeof( sout_stream_sys_t ) );
122 p_sys->p_out = sout_stream_new( p_stream->p_sout, p_stream->psz_next );
125 p_sys->i_sample_rate = 0;
126 p_sys->i_channels = 0;
127 p_sys->i_abitrate = 0;
130 p_sys->i_vbitrate = 0;
131 p_sys->i_vtolerance = -1;
134 p_sys->i_key_int = -1;
135 p_sys->i_b_frames = 0;
138 #if LIBAVCODEC_BUILD >= 4673
139 p_sys->i_hq = FF_MB_DECISION_SIMPLE;
141 p_sys->i_hq = VLC_FALSE;
143 p_sys->b_deinterlace= VLC_FALSE;
145 p_sys->i_crop_top = 0;
146 p_sys->i_crop_bottom= 0;
147 p_sys->i_crop_right = 0;
148 p_sys->i_crop_left = 0;
150 if( ( codec = sout_cfg_find_value( p_stream->p_cfg, "acodec" ) ) )
155 memcpy( fcc, codec, strlen( codec ) );
157 p_sys->i_acodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
159 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "samplerate" ) ) )
161 p_sys->i_sample_rate = atoi( val );
163 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "channels" ) ) )
165 p_sys->i_channels = atoi( val );
167 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "ab" ) ) )
169 p_sys->i_abitrate = atoi( val );
170 if( p_sys->i_abitrate < 4000 )
172 p_sys->i_abitrate *= 1000;
176 msg_Dbg( p_stream, "codec audio=%4.4s %dHz %d channels %dKb/s", fcc,
177 p_sys->i_sample_rate, p_sys->i_channels,
178 p_sys->i_abitrate / 1024 );
181 if( ( codec = sout_cfg_find_value( p_stream->p_cfg, "vcodec" ) ) )
186 memcpy( fcc, codec, strlen( codec ) );
188 p_sys->i_vcodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
190 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "width" ) ) )
192 p_sys->i_width = atoi( val );
194 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "height" ) ) )
196 p_sys->i_height = atoi( val );
198 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "vb" ) ) )
200 p_sys->i_vbitrate = atoi( val );
201 if( p_sys->i_vbitrate < 16000 )
203 p_sys->i_vbitrate *= 1000;
206 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "vt" ) ) )
208 p_sys->i_vtolerance = atoi( val );
210 if( sout_cfg_find( p_stream->p_cfg, "deinterlace" ) )
212 p_sys->b_deinterlace = VLC_TRUE;
215 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "croptop" ) ) )
217 p_sys->i_crop_top = atoi( val );
219 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "cropbottom" ) ) )
221 p_sys->i_crop_bottom = atoi( val );
223 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "cropleft" ) ) )
225 p_sys->i_crop_left = atoi( val );
227 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "cropright" ) ) )
229 p_sys->i_crop_right = atoi( val );
231 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "keyint" ) ) )
233 p_sys->i_key_int = atoi( val );
235 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "bframes" ) ) )
237 p_sys->i_b_frames = atoi( val );
239 #if LIBAVCODEC_BUILD >= 4673
240 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "hq" ) ) )
242 if( !strcmp( val, "rd" ) )
244 p_sys->i_hq = FF_MB_DECISION_RD;
246 else if( !strcmp( val, "bits" ) )
248 p_sys->i_hq = FF_MB_DECISION_BITS;
250 else if( !strcmp( val, "simple" ) )
252 p_sys->i_hq = FF_MB_DECISION_SIMPLE;
256 p_sys->i_hq = FF_MB_DECISION_RD;
260 if( sout_cfg_find( p_stream->p_cfg, "hq" ) )
262 p_sys->i_hq = VLC_TRUE;
265 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "qmin" ) ) )
267 p_sys->i_qmin = atoi( val );
269 if( ( val = sout_cfg_find_value( p_stream->p_cfg, "qmax" ) ) )
271 p_sys->i_qmax = atoi( val );
274 msg_Dbg( p_stream, "codec video=%4.4s %dx%d %dkb/s",
276 p_sys->i_width, p_sys->i_height,
277 p_sys->i_vbitrate / 1024 );
282 msg_Err( p_stream, "cannot create chain" );
286 p_stream->pf_add = Add;
287 p_stream->pf_del = Del;
288 p_stream->pf_send = Send;
290 p_stream->p_sys = p_sys;
293 avcodec_register_all();
295 /* ffmpeg needs some padding at the end of each buffer */
296 p_stream->p_sout->i_padding += FF_INPUT_BUFFER_PADDING_SIZE;
301 /*****************************************************************************
303 *****************************************************************************/
305 static void Close( vlc_object_t * p_this )
307 sout_stream_t *p_stream = (sout_stream_t*)p_this;
308 sout_stream_sys_t *p_sys = p_stream->p_sys;
310 sout_stream_delete( p_sys->p_out );
314 struct sout_stream_id_t
316 vlc_fourcc_t b_transcode;
317 sout_format_t f_src; /* only if transcoding */
318 sout_format_t f_dst; /* " " " */
320 /* id of the out stream */
325 AVCodecContext *ff_dec_c;
328 vlc_fourcc_t b_enc_inited;
330 AVCodecContext *ff_enc_c;
337 uint8_t *p_buffer_in;
344 int i_buffer_out_pos;
345 uint8_t *p_buffer_out;
348 AVFrame *p_ff_pic_tmp0; /* to do deinterlace */
349 AVFrame *p_ff_pic_tmp1; /* to do pix conversion */
350 AVFrame *p_ff_pic_tmp2; /* to do resample */
352 ImgReSampleContext *p_vresample;
354 #ifdef HAVE_VORBIS_VORBISENC_H
358 vorbis_dsp_state *p_vd;
360 vorbis_comment *p_vc;
361 int i_last_block_size;
363 vlc_bool_t b_headers_sent;
368 static sout_stream_id_t * Add( sout_stream_t *p_stream, sout_format_t *p_fmt )
370 sout_stream_sys_t *p_sys = p_stream->p_sys;
371 sout_stream_id_t *id;
373 id = malloc( sizeof( sout_stream_id_t ) );
376 if( p_fmt->i_cat == AUDIO_ES && p_sys->i_acodec != 0 )
379 "creating audio transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
380 (char*)&p_fmt->i_fourcc,
381 (char*)&p_sys->i_acodec );
384 memcpy( &id->f_src, p_fmt, sizeof( sout_format_t ) );
386 /* create dst format */
387 id->f_dst.i_cat = AUDIO_ES;
388 id->f_dst.i_fourcc = p_sys->i_acodec;
389 id->f_dst.i_sample_rate = p_sys->i_sample_rate > 0 ? p_sys->i_sample_rate : id->f_src.i_sample_rate;
390 id->f_dst.i_channels = p_sys->i_channels > 0 ? p_sys->i_channels : id->f_src.i_channels;
391 id->f_dst.i_bitrate = p_sys->i_abitrate > 0 ? p_sys->i_abitrate : 64000;
392 id->f_dst.i_block_align = 0;
393 id->f_dst.i_extra_data = 0;
394 id->f_dst.p_extra_data = NULL;
396 /* build decoder -> filter -> encoder */
397 if( transcode_audio_ffmpeg_new( p_stream, id ) )
399 msg_Err( p_stream, "cannot create audio chain" );
404 /* open output stream */
405 id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->f_dst );
406 id->b_transcode = VLC_TRUE;
414 else if( p_fmt->i_cat == VIDEO_ES && p_sys->i_vcodec != 0 )
417 "creating video transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
418 (char*)&p_fmt->i_fourcc,
419 (char*)&p_sys->i_vcodec );
421 memcpy( &id->f_src, p_fmt, sizeof( sout_format_t ) );
423 /* create dst format */
424 id->f_dst.i_cat = VIDEO_ES;
425 id->f_dst.i_fourcc = p_sys->i_vcodec;
426 id->f_dst.i_width = p_sys->i_width ; /* > 0 ? p_sys->i_width : id->f_src.i_width; */
427 id->f_dst.i_height = p_sys->i_height; /* > 0 ? p_sys->i_height: id->f_src.i_height; */
428 id->f_dst.i_bitrate = p_sys->i_vbitrate > 0 ? p_sys->i_vbitrate : 800*1000;
429 id->f_dst.i_extra_data = 0;
430 id->f_dst.p_extra_data = NULL;
432 /* build decoder -> filter -> encoder */
433 if( transcode_video_ffmpeg_new( p_stream, id ) )
435 msg_Err( p_stream, "cannot create video chain" );
440 /* open output stream */
441 id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->f_dst );
443 id->b_transcode = VLC_TRUE;
447 msg_Dbg( p_stream, "not transcoding a stream (fcc=`%4.4s')", (char*)&p_fmt->i_fourcc );
448 id->id = p_sys->p_out->pf_add( p_sys->p_out, p_fmt );
449 id->b_transcode = VLC_FALSE;
461 static int Del ( sout_stream_t *p_stream, sout_stream_id_t *id )
463 sout_stream_sys_t *p_sys = p_stream->p_sys;
465 if( id->b_transcode )
467 if( id->f_src.i_cat == AUDIO_ES )
469 transcode_audio_ffmpeg_close( p_stream, id );
471 else if( id->f_src.i_cat == VIDEO_ES )
473 transcode_video_ffmpeg_close( p_stream, id );
477 if( id->id ) p_sys->p_out->pf_del( p_sys->p_out, id->id );
483 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
484 sout_buffer_t *p_buffer )
486 sout_stream_sys_t *p_sys = p_stream->p_sys;
488 if( id->b_transcode )
490 sout_buffer_t *p_buffer_out;
491 if( id->f_src.i_cat == AUDIO_ES )
493 transcode_audio_ffmpeg_process( p_stream, id, p_buffer, &p_buffer_out );
495 else if( id->f_src.i_cat == VIDEO_ES )
497 transcode_video_ffmpeg_process( p_stream, id, p_buffer, &p_buffer_out );
499 sout_BufferDelete( p_stream->p_sout, p_buffer );
503 return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_buffer_out );
507 else if( id->id != NULL )
509 return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_buffer );
513 sout_BufferDelete( p_stream->p_sout, p_buffer );
518 /****************************************************************************
519 * ffmpeg decoder reencocdr part
520 ****************************************************************************/
526 } fourcc_to_ff_code[] =
529 { VLC_FOURCC( 'm', 'p', 'g', 'a' ), CODEC_ID_MP2 },
530 { VLC_FOURCC( 'm', 'p', '3', ' ' ), CODEC_ID_MP3LAME },
531 { VLC_FOURCC( 'a', '5', '2', ' ' ), CODEC_ID_AC3 },
532 { VLC_FOURCC( 'a', 'c', '3', ' ' ), CODEC_ID_AC3 },
533 { VLC_FOURCC( 'w', 'm', 'a', '1' ), CODEC_ID_WMAV1 },
534 { VLC_FOURCC( 'w', 'm', 'a', '2' ), CODEC_ID_WMAV2 },
535 { VLC_FOURCC( 'v', 'o', 'r', 'b' ), CODEC_ID_VORBIS },
536 { VLC_FOURCC( 'a', 'l', 'a', 'w' ), CODEC_ID_PCM_ALAW },
539 { VLC_FOURCC( 'm', 'p', 'g', 'v' ), CODEC_ID_MPEG1VIDEO },
540 { VLC_FOURCC( 'm', 'p', '1', 'v' ), CODEC_ID_MPEG1VIDEO },
541 #if LIBAVCODEC_BUILD >= 4676
542 { VLC_FOURCC( 'm', 'p', '2', 'v' ), CODEC_ID_MPEG2VIDEO },
544 { VLC_FOURCC( 'm', 'p', '4', 'v'), CODEC_ID_MPEG4 },
545 { VLC_FOURCC( 'D', 'I', 'V', '1' ), CODEC_ID_MSMPEG4V1 },
546 { VLC_FOURCC( 'D', 'I', 'V', '2' ), CODEC_ID_MSMPEG4V2 },
547 { VLC_FOURCC( 'D', 'I', 'V', '3' ), CODEC_ID_MSMPEG4V3 },
548 { VLC_FOURCC( 'H', '2', '6', '3' ), CODEC_ID_H263 },
549 { VLC_FOURCC( 'I', '2', '6', '3' ), CODEC_ID_H263I },
550 { VLC_FOURCC( 'h', 'u', 'f', 'f' ), CODEC_ID_HUFFYUV },
551 { VLC_FOURCC( 'W', 'M', 'V', '1' ), CODEC_ID_WMV1 },
552 { VLC_FOURCC( 'W', 'M', 'V', '2' ), CODEC_ID_WMV2 },
553 { VLC_FOURCC( 'M', 'J', 'P', 'G' ), CODEC_ID_MJPEG },
554 { VLC_FOURCC( 'm', 'j', 'p', 'b' ), CODEC_ID_MJPEGB },
555 { VLC_FOURCC( 'd', 'v', 's', 'l' ), CODEC_ID_DVVIDEO },
556 { VLC_FOURCC( 'S', 'V', 'Q', '1' ), CODEC_ID_SVQ1 },
557 #if LIBAVCODEC_BUILD >= 4666
558 { VLC_FOURCC( 'S', 'V', 'Q', '3' ), CODEC_ID_SVQ3 },
561 /* raw video code, only used for 'encoding' */
562 { VLC_FOURCC( 'I', '4', '2', '0' ), CODEC_ID_RAWVIDEO },
563 { VLC_FOURCC( 'I', '4', '2', '2' ), CODEC_ID_RAWVIDEO },
564 { VLC_FOURCC( 'I', '4', '4', '4' ), CODEC_ID_RAWVIDEO },
565 { VLC_FOURCC( 'R', 'V', '1', '5' ), CODEC_ID_RAWVIDEO },
566 { VLC_FOURCC( 'R', 'V', '1', '6' ), CODEC_ID_RAWVIDEO },
567 { VLC_FOURCC( 'R', 'V', '2', '4' ), CODEC_ID_RAWVIDEO },
568 { VLC_FOURCC( 'R', 'V', '3', '2' ), CODEC_ID_RAWVIDEO },
569 { VLC_FOURCC( 'Y', 'U', 'Y', '2' ), CODEC_ID_RAWVIDEO },
571 { VLC_FOURCC( 0, 0, 0, 0 ), 0 }
574 static inline int get_ff_codec( vlc_fourcc_t i_fcc )
578 for( i = 0; fourcc_to_ff_code[i].i_fcc != 0; i++ )
580 if( fourcc_to_ff_code[i].i_fcc == i_fcc )
582 return fourcc_to_ff_code[i].i_ff_codec;
589 static inline int get_ff_chroma( vlc_fourcc_t i_chroma )
593 case VLC_FOURCC( 'I', '4', '2', '0' ):
594 return PIX_FMT_YUV420P;
595 case VLC_FOURCC( 'I', '4', '2', '2' ):
596 return PIX_FMT_YUV422P;
597 case VLC_FOURCC( 'I', '4', '4', '4' ):
598 return PIX_FMT_YUV444P;
599 case VLC_FOURCC( 'R', 'V', '1', '5' ):
600 return PIX_FMT_RGB555;
601 case VLC_FOURCC( 'R', 'V', '1', '6' ):
602 return PIX_FMT_RGB565;
603 case VLC_FOURCC( 'R', 'V', '2', '4' ):
604 return PIX_FMT_RGB24;
605 case VLC_FOURCC( 'R', 'V', '3', '2' ):
606 return PIX_FMT_RGBA32;
607 case VLC_FOURCC( 'G', 'R', 'E', 'Y' ):
608 return PIX_FMT_GRAY8;
609 case VLC_FOURCC( 'Y', 'U', 'Y', '2' ):
610 return PIX_FMT_YUV422;
616 static int transcode_audio_ffmpeg_new( sout_stream_t *p_stream,
617 sout_stream_id_t *id )
621 if( id->f_src.i_fourcc == VLC_FOURCC('s','1','6','l') ||
622 id->f_src.i_fourcc == VLC_FOURCC('s','1','6','b') ||
623 id->f_src.i_fourcc == VLC_FOURCC('s','8',' ',' ') ||
624 id->f_src.i_fourcc == VLC_FOURCC('u','8',' ',' ') )
628 id->ff_dec_c = avcodec_alloc_context();
629 id->ff_dec_c->sample_rate = id->f_src.i_sample_rate;
630 id->ff_dec_c->channels = id->f_src.i_channels;
631 id->ff_dec_c->block_align = id->f_src.i_block_align;
632 id->ff_dec_c->bit_rate = id->f_src.i_bitrate;
637 i_ff_codec = get_ff_codec( id->f_src.i_fourcc );
638 if( i_ff_codec == 0 )
640 msg_Err( p_stream, "cannot find decoder id" );
644 id->ff_dec = avcodec_find_decoder( i_ff_codec );
647 msg_Err( p_stream, "cannot find decoder (avcodec)" );
651 id->ff_dec_c = avcodec_alloc_context();
652 id->ff_dec_c->sample_rate = id->f_src.i_sample_rate;
653 id->ff_dec_c->channels = id->f_src.i_channels;
654 id->ff_dec_c->block_align = id->f_src.i_block_align;
655 id->ff_dec_c->bit_rate = id->f_src.i_bitrate;
657 id->ff_dec_c->extradata_size = id->f_src.i_extra_data;
658 id->ff_dec_c->extradata = id->f_src.p_extra_data;
659 if( avcodec_open( id->ff_dec_c, id->ff_dec ) )
661 msg_Err( p_stream, "cannot open decoder" );
667 id->i_buffer_in = 2 * AVCODEC_MAX_AUDIO_FRAME_SIZE;
668 id->i_buffer_in_pos = 0;
669 id->p_buffer_in = malloc( id->i_buffer_in );
671 id->i_buffer = 2 * AVCODEC_MAX_AUDIO_FRAME_SIZE;
672 id->i_buffer_pos = 0;
673 id->p_buffer = malloc( id->i_buffer );
675 id->i_buffer_out = 2 * AVCODEC_MAX_AUDIO_FRAME_SIZE;
676 id->i_buffer_out_pos = 0;
677 id->p_buffer_out = malloc( id->i_buffer_out );
679 /* Sanity check for audio channels */
680 id->f_dst.i_channels = __MIN( id->f_dst.i_channels, id->f_src.i_channels );
682 #ifdef HAVE_VORBIS_VORBISENC_H
683 if( id->f_dst.i_fourcc == VLC_FOURCC('v','o','r','b') )
685 id->p_vi = (vorbis_info *)malloc( sizeof(vorbis_info) );
686 id->p_vd = (vorbis_dsp_state *)malloc( sizeof(vorbis_dsp_state) );
687 id->p_vb = (vorbis_block *)malloc( sizeof(vorbis_block) );
688 id->p_vc = (vorbis_comment *)malloc( sizeof(vorbis_comment) );
690 vorbis_info_init( id->p_vi );
692 if( vorbis_encode_setup_managed( id->p_vi, id->f_dst.i_channels,
693 id->f_dst.i_sample_rate, -1, id->f_dst.i_bitrate, -1 ) ||
694 vorbis_encode_ctl( id->p_vi, OV_ECTL_RATEMANAGE_AVG, NULL ) ||
695 vorbis_encode_setup_init( id->p_vi ) ){}
698 vorbis_comment_init( id->p_vc);
699 vorbis_comment_add_tag( id->p_vc, "ENCODER", "VLC media player");
701 /* set up the analysis state and auxiliary encoding storage */
702 vorbis_analysis_init( id->p_vd, id->p_vi );
703 vorbis_block_init( id->p_vd, id->p_vb );
705 id->b_headers_sent = VLC_FALSE;
706 id->i_last_block_size = 0;
707 id->i_samples_delay = 0;
713 i_ff_codec = get_ff_codec( id->f_dst.i_fourcc );
714 if( i_ff_codec == 0 )
716 msg_Err( p_stream, "cannot find encoder id" );
720 id->ff_enc = avcodec_find_encoder( i_ff_codec );
723 msg_Err( p_stream, "cannot find encoder (avcodec)" );
727 /* Hack for mp3 transcoding support */
728 if( id->f_dst.i_fourcc == VLC_FOURCC( 'm','p','3',' ' ) )
730 id->f_dst.i_fourcc = VLC_FOURCC( 'm','p','g','a' );
733 id->ff_enc_c = avcodec_alloc_context();
734 id->ff_enc_c->bit_rate = id->f_dst.i_bitrate;
735 id->ff_enc_c->sample_rate = id->f_dst.i_sample_rate;
736 id->ff_enc_c->channels = id->f_dst.i_channels;
738 if( avcodec_open( id->ff_enc_c, id->ff_enc ) )
740 if( id->ff_enc_c->channels > 2 )
742 id->ff_enc_c->channels = 2;
743 id->f_dst.i_channels = 2;
744 if( avcodec_open( id->ff_enc_c, id->ff_enc ) )
746 msg_Err( p_stream, "cannot open encoder" );
749 msg_Warn( p_stream, "stereo mode selected (codec limitation)" );
753 msg_Err( p_stream, "cannot open encoder" );
761 static void transcode_audio_ffmpeg_close( sout_stream_t *p_stream,
762 sout_stream_id_t *id )
766 avcodec_close( id->ff_dec_c );
769 #ifdef HAVE_VORBIS_VORBISENC_H
770 if( id->f_dst.i_fourcc == VLC_FOURCC('v','o','r','b') )
772 vorbis_block_clear( id->p_vb );
773 vorbis_dsp_clear( id->p_vd );
774 vorbis_comment_clear( id->p_vc );
775 vorbis_info_clear( id->p_vi ); /* must be called last */
784 avcodec_close( id->ff_enc_c );
786 free( id->ff_dec_c );
787 if( id->f_dst.i_fourcc != VLC_FOURCC('v','o','r','b') )
788 free( id->ff_enc_c );
790 free( id->p_buffer_in );
791 free( id->p_buffer );
792 free( id->p_buffer_out );
795 static int transcode_audio_ffmpeg_process( sout_stream_t *p_stream,
796 sout_stream_id_t *id,
798 sout_buffer_t **out )
800 vlc_bool_t b_again = VLC_FALSE;
804 /* gather data into p_buffer_in */
805 #ifdef HAVE_VORBIS_VORBISENC_H
806 if( id->f_dst.i_fourcc == VLC_FOURCC( 'v', 'o', 'r', 'b' ) )
807 id->i_dts = in->i_dts -
808 (mtime_t)1000000 * (mtime_t)id->i_samples_delay /
809 (mtime_t)id->f_dst.i_sample_rate;
812 id->i_dts = in->i_dts -
814 (mtime_t)(id->i_buffer_pos / 2 / id->ff_dec_c->channels )/
815 (mtime_t)id->ff_dec_c->sample_rate;
817 if( id->i_buffer_in_pos + (int)in->i_size > id->i_buffer_in )
819 /* extend buffer_in */
820 id->i_buffer_in = id->i_buffer_in_pos + in->i_size + 1024;
821 id->p_buffer_in = realloc( id->p_buffer_in, id->i_buffer_in );
823 memcpy( &id->p_buffer_in[id->i_buffer_in_pos],
824 in->p_buffer, in->i_size );
825 id->i_buffer_in_pos += in->i_size;
831 /* decode as much data as possible */
839 i_buffer_size = id->i_buffer - id->i_buffer_pos;
841 i_used = avcodec_decode_audio( id->ff_dec_c,
842 (int16_t*)&id->p_buffer[id->i_buffer_pos],
843 &i_buffer_size, id->p_buffer_in,
844 id->i_buffer_in_pos );
846 /* msg_Warn( p_stream, "avcodec_decode_audio: %d used",
848 id->i_buffer_pos += i_buffer_size;
852 msg_Warn( p_stream, "error");
853 id->i_buffer_in_pos = 0;
856 else if( i_used < id->i_buffer_in_pos )
858 memmove( id->p_buffer_in,
859 &id->p_buffer_in[i_used],
860 id->i_buffer_in - i_used );
861 id->i_buffer_in_pos -= i_used;
865 id->i_buffer_in_pos = 0;
869 if( id->i_buffer_pos >= AVCODEC_MAX_AUDIO_FRAME_SIZE )
879 int16_t *sout = (int16_t*)&id->p_buffer[id->i_buffer_pos];
882 if( id->f_src.i_fourcc == VLC_FOURCC( 's', '8', ' ', ' ' ) )
884 int8_t *sin = (int8_t*)id->p_buffer_in;
885 int i_samples = __MIN( ( id->i_buffer - id->i_buffer_pos )
886 / 2, id->i_buffer_in_pos );
888 while( i_samples > 0 )
890 *sout++ = ( *sin++ ) << 8;
894 else if( id->f_src.i_fourcc == VLC_FOURCC( 'u', '8', ' ', ' ' ) )
896 int8_t *sin = (int8_t*)id->p_buffer_in;
897 int i_samples = __MIN( ( id->i_buffer - id->i_buffer_pos )
898 / 2, id->i_buffer_in_pos );
900 while( i_samples > 0 )
902 *sout++ = ( *sin++ - 128 ) << 8;
906 else if( id->f_src.i_fourcc == VLC_FOURCC( 's', '1', '6', 'l' ) )
908 int i_samples = __MIN( ( id->i_buffer - id->i_buffer_pos )
909 / 2, id->i_buffer_in_pos / 2);
910 #ifdef WORDS_BIGENDIAN
911 uint8_t *sin = (uint8_t*)id->p_buffer_in;
912 i_used = i_samples * 2;
913 while( i_samples > 0 )
919 *sout++ = *(int16_t*)tmp;
924 memcpy( sout, id->p_buffer_in, i_samples * 2 );
926 i_used = i_samples * 2;
929 else if( id->f_src.i_fourcc == VLC_FOURCC( 's', '1', '6', 'b' ) )
931 int i_samples = __MIN( ( id->i_buffer - id->i_buffer_pos )
932 / 2, id->i_buffer_in_pos / 2);
933 #ifdef WORDS_BIGENDIAN
934 memcpy( sout, id->p_buffer_in, i_samples * 2 );
936 i_used = i_samples * 2;
938 uint8_t *sin = (uint8_t*)id->p_buffer_in;
939 i_used = i_samples * 2;
940 while( i_samples > 0 )
946 *sout++ = *(int16_t*)tmp;
952 id->i_buffer_pos = (uint8_t*)sout - id->p_buffer;
953 if( i_used < id->i_buffer_in_pos )
955 memmove( id->p_buffer_in,
956 &id->p_buffer_in[i_used],
957 id->i_buffer_in - i_used );
959 id->i_buffer_in_pos -= i_used;
962 i_buffer_pos = id->i_buffer_pos;
964 /* encode as much data as possible */
966 #ifdef HAVE_VORBIS_VORBISENC_H
967 if( id->i_buffer_pos == 0 );
968 else if( id->f_dst.i_fourcc == VLC_FOURCC( 'v', 'o', 'r', 'b' ) )
972 sout_buffer_t *p_out;
975 if( !id->b_headers_sent )
977 ogg_packet header[3];
978 vorbis_analysis_headerout( id->p_vd, id->p_vc,
979 &header[0], &header[1], &header[2]);
980 for( i = 0; i < 3; i++ )
982 p_out = sout_BufferNew( p_stream->p_sout, header[i].bytes);
983 memcpy( p_out->p_buffer, header[i].packet,
986 p_out->i_size = header[i].bytes;
989 p_out->i_dts = p_out->i_pts = 0;
991 sout_BufferChain( out, p_out );
993 id->b_headers_sent = VLC_TRUE;
996 i_samples = id->i_buffer_pos / id->f_src.i_channels / 2;
997 id->i_samples_delay += i_samples;
998 id->i_buffer_pos = 0;
1000 buffer = vorbis_analysis_buffer( id->p_vd, i_samples );
1002 /* convert samples to float and uninterleave */
1003 for( i = 0; i < id->f_dst.i_channels; i++ )
1005 for( j = 0 ; j < i_samples ; j++ )
1007 buffer[i][j]= ((float)( ((int16_t *)id->p_buffer)
1008 [j*id->f_src.i_channels + i ] ))/ 32768.f;
1012 vorbis_analysis_wrote( id->p_vd, i_samples );
1014 while( vorbis_analysis_blockout( id->p_vd, id->p_vb ) == 1 )
1016 vorbis_analysis( id->p_vb, NULL );
1017 vorbis_bitrate_addblock( id->p_vb );
1019 while( vorbis_bitrate_flushpacket( id->p_vd, &op ) )
1022 p_out = sout_BufferNew( p_stream->p_sout, op.bytes );
1023 memcpy( p_out->p_buffer, op.packet, op.bytes );
1025 i_block_size = vorbis_packet_blocksize( id->p_vi, &op );
1027 if( i_block_size < 0 ) i_block_size = 0;
1028 i_samples = ( id->i_last_block_size +
1029 i_block_size ) >> 2;
1030 id->i_last_block_size = i_block_size;
1032 p_out->i_size = op.bytes;
1033 p_out->i_length = (mtime_t)1000000 *
1034 (mtime_t)i_samples /
1035 (mtime_t)id->f_dst.i_sample_rate;
1037 //msg_Err( p_stream, "i_dts: %lld", id->i_dts );
1040 p_out->i_dts = id->i_dts;
1041 p_out->i_pts = id->i_dts;
1043 id->i_samples_delay -= i_samples;
1046 id->i_dts += p_out->i_length;
1047 sout_BufferChain( out, p_out );
1057 int i_frame_size = id->ff_enc_c->frame_size * 2 *
1058 id->ff_dec_c->channels;
1059 int i_out_size, i, j;
1060 sout_buffer_t *p_out;
1061 int16_t *p_buffer = (int16_t *)(id->p_buffer + i_buffer_pos -
1064 if( id->i_buffer_pos < i_frame_size )
1069 if( id->ff_dec_c->channels != id->ff_enc_c->channels )
1071 /* dumb downmixing */
1072 for( i = 0; i < id->ff_enc_c->frame_size; i++ )
1074 for( j = 0 ; j < id->f_dst.i_channels; j++ )
1076 p_buffer[i*id->f_dst.i_channels+j] = p_buffer[i*id->f_src.i_channels+j];
1081 /* msg_Warn( p_stream, "avcodec_encode_audio: frame size%d",
1083 i_out_size = avcodec_encode_audio( id->ff_enc_c,
1084 id->p_buffer_out, id->i_buffer_out, p_buffer );
1086 if( i_out_size <= 0 )
1091 id->i_buffer_pos -= i_frame_size;
1093 p_out = sout_BufferNew( p_stream->p_sout, i_out_size );
1094 memcpy( p_out->p_buffer, id->p_buffer_out, i_out_size );
1095 p_out->i_size = i_out_size;
1096 p_out->i_length = (mtime_t)1000000 *
1097 (mtime_t)id->ff_enc_c->frame_size /
1098 (mtime_t)id->ff_enc_c->sample_rate;
1101 p_out->i_dts = id->i_dts;
1102 p_out->i_pts = id->i_dts;
1105 id->i_dts += p_out->i_length;
1107 /* msg_Warn( p_stream, "frame dts=%lld len %lld out=%d",
1108 p_out->i_dts, p_out->i_length, i_out_size ); */
1110 sout_BufferChain( out, p_out );
1113 /* Copy the remaining raw samples */
1114 if( id->i_buffer_pos != 0 )
1116 memmove( id->p_buffer,
1117 &id->p_buffer[i_buffer_pos - id->i_buffer_pos],
1130 static int transcode_video_ffmpeg_new( sout_stream_t *p_stream,
1131 sout_stream_id_t *id )
1133 sout_stream_sys_t *p_sys = p_stream->p_sys;
1137 if( id->f_src.i_fourcc == VLC_FOURCC( 'I', '4', '2', '0' ) ||
1138 id->f_src.i_fourcc == VLC_FOURCC( 'I', '4', '2', '2' ) ||
1139 id->f_src.i_fourcc == VLC_FOURCC( 'I', '4', '4', '4' ) ||
1140 id->f_src.i_fourcc == VLC_FOURCC( 'Y', 'U', 'Y', '2' ) ||
1141 id->f_src.i_fourcc == VLC_FOURCC( 'R', 'V', '1', '5' ) ||
1142 id->f_src.i_fourcc == VLC_FOURCC( 'R', 'V', '1', '6' ) ||
1143 id->f_src.i_fourcc == VLC_FOURCC( 'R', 'V', '2', '4' ) ||
1144 id->f_src.i_fourcc == VLC_FOURCC( 'R', 'V', '3', '2' ) ||
1145 id->f_src.i_fourcc == VLC_FOURCC( 'G', 'R', 'E', 'Y' ) )
1148 id->ff_dec_c = avcodec_alloc_context();
1149 id->ff_dec_c->width = id->f_src.i_width;
1150 id->ff_dec_c->height = id->f_src.i_height;
1151 id->ff_dec_c->pix_fmt = get_ff_chroma( id->f_src.i_fourcc );
1156 i_ff_codec = get_ff_codec( id->f_src.i_fourcc );
1157 if( i_ff_codec == 0 )
1159 msg_Err( p_stream, "cannot find decoder" );
1160 return VLC_EGENERIC;
1163 id->ff_dec = avcodec_find_decoder( i_ff_codec );
1166 msg_Err( p_stream, "cannot find decoder" );
1167 return VLC_EGENERIC;
1170 id->ff_dec_c = avcodec_alloc_context();
1171 id->ff_dec_c->width = id->f_src.i_width;
1172 id->ff_dec_c->height = id->f_src.i_height;
1173 /* id->ff_dec_c->bit_rate = id->f_src.i_bitrate; */
1174 id->ff_dec_c->extradata_size= id->f_src.i_extra_data;
1175 id->ff_dec_c->extradata = id->f_src.p_extra_data;
1176 id->ff_dec_c->workaround_bugs = FF_BUG_AUTODETECT;
1177 id->ff_dec_c->error_resilience= -1;
1178 id->ff_dec_c->get_buffer = transcode_video_ffmpeg_getframebuf;
1179 id->ff_dec_c->opaque = p_sys;
1181 if( avcodec_open( id->ff_dec_c, id->ff_dec ) < 0 )
1183 msg_Err( p_stream, "cannot open decoder" );
1184 return VLC_EGENERIC;
1187 if( i_ff_codec == CODEC_ID_MPEG4 && id->ff_dec_c->extradata_size > 0 )
1191 uint8_t *p_vol = malloc( id->ff_dec_c->extradata_size +
1192 FF_INPUT_BUFFER_PADDING_SIZE );
1194 memcpy( p_vol, id->ff_dec_c->extradata,
1195 id->ff_dec_c->extradata_size );
1196 memset( p_vol + id->ff_dec_c->extradata_size, 0,
1197 FF_INPUT_BUFFER_PADDING_SIZE );
1199 avcodec_decode_video( id->ff_dec_c, &frame, &b_gotpicture,
1200 id->ff_dec_c->extradata,
1201 id->ff_dec_c->extradata_size );
1208 i_ff_codec = get_ff_codec( id->f_dst.i_fourcc );
1209 if( i_ff_codec == 0 )
1211 msg_Err( p_stream, "cannot find encoder" );
1212 return VLC_EGENERIC;
1215 id->ff_enc = avcodec_find_encoder( i_ff_codec );
1218 msg_Err( p_stream, "cannot find encoder" );
1219 return VLC_EGENERIC;
1222 if( id->f_dst.i_fourcc == VLC_FOURCC( 'm','p','1','v' )||
1223 id->f_dst.i_fourcc == VLC_FOURCC( 'm','p','2','v' ) )
1225 id->f_dst.i_fourcc = VLC_FOURCC( 'm','p','g','v' );
1228 id->ff_enc_c = avcodec_alloc_context();
1229 id->ff_enc_c->width = id->f_dst.i_width;
1230 id->ff_enc_c->height = id->f_dst.i_height;
1231 id->ff_enc_c->bit_rate = id->f_dst.i_bitrate;
1235 id->ff_enc_c->frame_rate = id->ff_dec_c->frame_rate;
1236 #if LIBAVCODEC_BUILD >= 4662
1237 id->ff_enc_c->frame_rate_base= id->ff_dec_c->frame_rate_base;
1242 #if LIBAVCODEC_BUILD >= 4662
1243 id->ff_enc_c->frame_rate = 25 ; /* FIXME as it break mpeg */
1244 id->ff_enc_c->frame_rate_base= 1;
1246 id->ff_enc_c->frame_rate = 25 * FRAME_RATE_BASE;
1250 id->ff_enc_c->gop_size = p_sys->i_key_int >= 0 ? p_sys->i_key_int : 50;
1251 id->ff_enc_c->max_b_frames = __MIN( p_sys->i_b_frames, FF_MAX_B_FRAMES );
1252 id->ff_enc_c->b_frame_strategy = 0;
1253 id->ff_enc_c->b_quant_factor = 2.0;
1255 if( p_sys->i_vtolerance >= 0 )
1257 id->ff_enc_c->bit_rate_tolerance = p_sys->i_vtolerance;
1259 id->ff_enc_c->qmin = p_sys->i_qmin;
1260 id->ff_enc_c->qmax = p_sys->i_qmax;
1262 #if LIBAVCODEC_BUILD >= 4673
1263 id->ff_enc_c->mb_decision = p_sys->i_hq;
1267 id->ff_enc_c->flags |= CODEC_FLAG_HQ;
1271 if( i_ff_codec == CODEC_ID_RAWVIDEO )
1273 id->ff_enc_c->pix_fmt = get_ff_chroma( id->f_dst.i_fourcc );
1275 /* XXX open it only when we have the first frame */
1276 id->b_enc_inited = VLC_FALSE;
1277 id->i_buffer_in = 0;
1278 id->i_buffer_in_pos = 0;
1279 id->p_buffer_in = NULL;
1281 id->i_buffer = 3*1024*1024;
1282 id->i_buffer_pos = 0;
1283 id->p_buffer = malloc( id->i_buffer );
1285 id->i_buffer_out = 0;
1286 id->i_buffer_out_pos = 0;
1287 id->p_buffer_out = NULL;
1289 id->p_ff_pic = avcodec_alloc_frame();
1290 id->p_ff_pic_tmp0 = NULL;
1291 id->p_ff_pic_tmp1 = NULL;
1292 id->p_ff_pic_tmp2 = NULL;
1293 id->p_vresample = NULL;
1295 p_sys->i_last_ref_pts = 0;
1296 p_sys->i_buggy_pts_detect = 0;
1301 static void transcode_video_ffmpeg_close ( sout_stream_t *p_stream, sout_stream_id_t *id )
1305 avcodec_close( id->ff_dec_c );
1307 if( id->b_enc_inited )
1309 avcodec_close( id->ff_enc_c );
1314 free( id->p_ff_pic );
1317 if( id->p_ff_pic_tmp0 )
1319 free( id->p_ff_pic_tmp0->data[0] );
1320 free( id->p_ff_pic_tmp0 );
1322 if( id->p_ff_pic_tmp1)
1324 free( id->p_ff_pic_tmp1->data[0] );
1325 free( id->p_ff_pic_tmp1 );
1327 if( id->p_ff_pic_tmp2)
1329 free( id->p_ff_pic_tmp2->data[0] );
1330 free( id->p_ff_pic_tmp2 );
1332 if( id->p_vresample )
1334 free( id->p_vresample );
1337 free( id->ff_dec_c );
1338 free( id->ff_enc_c );
1340 free( id->p_buffer );
1343 static int transcode_video_ffmpeg_process( sout_stream_t *p_stream,
1344 sout_stream_id_t *id, sout_buffer_t *in, sout_buffer_t **out )
1346 sout_stream_sys_t *p_sys = p_stream->p_sys;
1357 i_data = in->i_size;
1358 p_data = in->p_buffer;
1363 frame = id->p_ff_pic;
1364 p_sys->i_input_pts = in->i_pts;
1367 i_used = avcodec_decode_video( id->ff_dec_c, frame,
1374 avpicture_fill( (AVPicture*)frame,
1376 id->ff_dec_c->pix_fmt,
1377 id->ff_dec_c->width, id->ff_dec_c->height );
1382 frame->pts = p_sys->i_input_pts;
1387 msg_Warn( p_stream, "error");
1388 return VLC_EGENERIC;
1398 /* Get the pts of the decoded frame if any, otherwise keep the
1399 * interpolated one */
1400 if( frame->pts > 0 )
1402 p_sys->i_output_pts = frame->pts;
1405 if( !id->b_enc_inited )
1407 /* XXX hack because of copy packetizer and mpeg4video that can failed
1409 if( id->ff_enc_c->width <= 0 )
1411 id->ff_enc_c->width =
1412 id->f_dst.i_width = id->ff_dec_c->width - p_sys->i_crop_left - p_sys->i_crop_right;
1414 if( id->ff_enc_c->height <= 0 )
1416 id->ff_enc_c->height =
1417 id->f_dst.i_height = id->ff_dec_c->height - p_sys->i_crop_top - p_sys->i_crop_bottom;
1420 if( avcodec_open( id->ff_enc_c, id->ff_enc ) )
1422 msg_Err( p_stream, "cannot open encoder" );
1423 return VLC_EGENERIC;
1426 if( !( id->id = p_stream->p_sys->p_out->pf_add( p_stream->p_sys->p_out, &id->f_dst ) ) )
1428 msg_Err( p_stream, "cannot add this stream" );
1429 transcode_video_ffmpeg_close( p_stream, id );
1430 id->b_transcode = VLC_FALSE;
1431 return VLC_EGENERIC;
1433 id->b_enc_inited = VLC_TRUE;
1438 if( p_stream->p_sys->b_deinterlace )
1440 if( id->p_ff_pic_tmp0 == NULL )
1444 id->p_ff_pic_tmp0 = avcodec_alloc_frame();
1445 i_size = avpicture_get_size( id->ff_dec_c->pix_fmt,
1446 id->ff_dec_c->width, id->ff_dec_c->height );
1448 buf = malloc( i_size );
1450 avpicture_fill( (AVPicture*)id->p_ff_pic_tmp0, buf,
1451 id->ff_enc_c->pix_fmt,
1452 id->ff_dec_c->width, id->ff_dec_c->height );
1455 avpicture_deinterlace( (AVPicture*)id->p_ff_pic_tmp0, (AVPicture*)frame,
1456 id->ff_dec_c->pix_fmt,
1457 id->ff_dec_c->width, id->ff_dec_c->height );
1459 frame = id->p_ff_pic_tmp0;
1462 /* convert pix format */
1463 if( id->ff_dec_c->pix_fmt != id->ff_enc_c->pix_fmt )
1465 if( id->p_ff_pic_tmp1 == NULL )
1469 id->p_ff_pic_tmp1 = avcodec_alloc_frame();
1470 i_size = avpicture_get_size( id->ff_enc_c->pix_fmt,
1471 id->ff_dec_c->width, id->ff_dec_c->height );
1473 buf = malloc( i_size );
1475 avpicture_fill( (AVPicture*)id->p_ff_pic_tmp1, buf,
1476 id->ff_enc_c->pix_fmt,
1477 id->ff_dec_c->width, id->ff_dec_c->height );
1480 img_convert( (AVPicture*)id->p_ff_pic_tmp1, id->ff_enc_c->pix_fmt,
1481 (AVPicture*)frame, id->ff_dec_c->pix_fmt,
1482 id->ff_dec_c->width, id->ff_dec_c->height );
1484 frame = id->p_ff_pic_tmp1;
1487 /* convert size and crop */
1488 if( id->ff_dec_c->width != id->ff_enc_c->width ||
1489 id->ff_dec_c->height != id->ff_enc_c->height ||
1490 p_sys->i_crop_top > 0 || p_sys->i_crop_bottom > 0 ||
1491 p_sys->i_crop_left > 0 || p_sys->i_crop_right )
1493 if( id->p_ff_pic_tmp2 == NULL )
1497 id->p_ff_pic_tmp2 = avcodec_alloc_frame();
1498 i_size = avpicture_get_size( id->ff_enc_c->pix_fmt,
1499 id->ff_enc_c->width, id->ff_enc_c->height );
1501 buf = malloc( i_size );
1503 avpicture_fill( (AVPicture*)id->p_ff_pic_tmp2, buf,
1504 id->ff_enc_c->pix_fmt,
1505 id->ff_enc_c->width, id->ff_enc_c->height );
1508 img_resample_full_init( id->ff_enc_c->width, id->ff_enc_c->height,
1509 id->ff_dec_c->width, id->ff_dec_c->height,
1510 p_stream->p_sys->i_crop_top,
1511 p_stream->p_sys->i_crop_bottom,
1512 p_stream->p_sys->i_crop_left,
1513 p_stream->p_sys->i_crop_right );
1516 img_resample( id->p_vresample, (AVPicture*)id->p_ff_pic_tmp2,
1517 (AVPicture*)frame );
1519 frame = id->p_ff_pic_tmp2;
1522 /* Set the pts of the frame being encoded (segfaults with mpeg4!)*/
1523 if( id->f_dst.i_fourcc == VLC_FOURCC( 'm', 'p', 'g', 'v' ) )
1524 frame->pts = p_sys->i_output_pts;
1528 /* Interpolate the next PTS
1529 * (needed by the mpeg video packetizer which can send pts <= 0 ) */
1530 if( id->ff_dec_c && id->ff_dec_c->frame_rate > 0 )
1532 p_sys->i_output_pts += I64C(1000000) * (2 + frame->repeat_pict) *
1533 id->ff_dec_c->frame_rate_base / (2 * id->ff_dec_c->frame_rate);
1536 /* Let ffmpeg select the frame type */
1537 frame->pict_type = 0;
1539 i_out = avcodec_encode_video( id->ff_enc_c, id->p_buffer,
1540 id->i_buffer, frame );
1543 sout_buffer_t *p_out;
1544 p_out = sout_BufferNew( p_stream->p_sout, i_out );
1546 memcpy( p_out->p_buffer, id->p_buffer, i_out );
1548 p_out->i_size = i_out;
1550 if( id->ff_enc_c->coded_frame->pts != 0 &&
1551 p_sys->i_buggy_pts_detect != id->ff_enc_c->coded_frame->pts )
1553 p_sys->i_buggy_pts_detect = id->ff_enc_c->coded_frame->pts;
1555 /* FIXME, 3-2 pulldown is not handled correctly */
1556 p_out->i_length = in->i_length;
1557 p_out->i_pts = id->ff_enc_c->coded_frame->pts;
1559 if( !id->ff_enc_c->delay ||
1560 ( id->ff_enc_c->coded_frame->pict_type != FF_I_TYPE &&
1561 id->ff_enc_c->coded_frame->pict_type != FF_P_TYPE ) )
1563 p_out->i_dts = p_out->i_pts;
1567 if( p_sys->i_last_ref_pts )
1569 p_out->i_dts = p_sys->i_last_ref_pts;
1573 /* Let's put something sensible */
1574 p_out->i_dts = p_out->i_pts;
1577 p_sys->i_last_ref_pts = p_out->i_pts;
1582 /* Buggy libavcodec which doesn't update coded_frame->pts
1584 p_out->i_length = in->i_length;
1585 p_out->i_dts = in->i_dts;
1586 p_out->i_pts = in->i_dts;
1589 sout_BufferChain( out, p_out );
1601 /*****************************************************************************
1602 * transcode_video_ffmpeg_getframebuf:
1604 * Callback used by ffmpeg to get a frame buffer.
1605 * We use it to get the right PTS for each decoded picture.
1606 *****************************************************************************/
1607 static int transcode_video_ffmpeg_getframebuf(struct AVCodecContext *p_context,
1610 sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_context->opaque;
1613 p_frame->pts = p_sys->i_input_pts;
1615 return avcodec_default_get_buffer( p_context, p_frame );