1 /*****************************************************************************
2 * transcode.c: transcoding stream output module
3 *****************************************************************************
4 * Copyright (C) 2003-2004 VideoLAN
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
32 #include <vlc/input.h>
35 #include <vlc/decoder.h>
36 #include "vlc_filter.h"
39 /*****************************************************************************
41 *****************************************************************************/
42 #define VENC_TEXT N_("Video encoder")
43 #define VENC_LONGTEXT N_( \
44 "Allows you to specify the video encoder to use and its associated " \
46 #define VCODEC_TEXT N_("Destination video codec")
47 #define VCODEC_LONGTEXT N_( \
48 "Allows you to specify the destination video codec used for the " \
50 #define VB_TEXT N_("Video bitrate")
51 #define VB_LONGTEXT N_( \
52 "Allows you to specify the video bitrate used for the streaming " \
54 #define SCALE_TEXT N_("Video scaling")
55 #define SCALE_LONGTEXT N_( \
56 "Allows you to scale the video before encoding." )
57 #define FPS_TEXT N_("Video frame-rate")
58 #define FPS_LONGTEXT N_( \
59 "Allows you to specify an output frame rate for the video." )
60 #define DEINTERLACE_TEXT N_("Deinterlace video")
61 #define DEINTERLACE_LONGTEXT N_( \
62 "Allows you to deinterlace the video before encoding." )
63 #define WIDTH_TEXT N_("Video width")
64 #define WIDTH_LONGTEXT N_( \
65 "Allows you to specify the output video width." )
66 #define HEIGHT_TEXT N_("Video height")
67 #define HEIGHT_LONGTEXT N_( \
68 "Allows you to specify the output video height." )
70 #define CROPTOP_TEXT N_("Video crop top")
71 #define CROPTOP_LONGTEXT N_( \
72 "Allows you to specify the top coordinate for the video cropping." )
73 #define CROPLEFT_TEXT N_("Video crop left")
74 #define CROPLEFT_LONGTEXT N_( \
75 "Allows you to specify the left coordinate for the video cropping." )
76 #define CROPBOTTOM_TEXT N_("Video crop bottom")
77 #define CROPBOTTOM_LONGTEXT N_( \
78 "Allows you to specify the bottom coordinate for the video cropping." )
79 #define CROPRIGHT_TEXT N_("Video crop right")
80 #define CROPRIGHT_LONGTEXT N_( \
81 "Allows you to specify the right coordinate for the video cropping." )
83 #define AENC_TEXT N_("Audio encoder")
84 #define AENC_LONGTEXT N_( \
85 "Allows you to specify the audio encoder to use and its associated " \
87 #define ACODEC_TEXT N_("Destination audio codec")
88 #define ACODEC_LONGTEXT N_( \
89 "Allows you to specify the destination audio codec used for the " \
91 #define AB_TEXT N_("Audio bitrate")
92 #define AB_LONGTEXT N_( \
93 "Allows you to specify the audio bitrate used for the streaming " \
95 #define ARATE_TEXT N_("Audio sample rate")
96 #define ARATE_LONGTEXT N_( \
97 "Allows you to specify the audio sample rate used for the streaming " \
99 #define ACHANS_TEXT N_("Audio channels")
100 #define ACHANS_LONGTEXT N_( \
101 "Allows you to specify the number of audio channels used for the " \
102 "streaming output." )
104 #define SENC_TEXT N_("Subtitles encoder")
105 #define SENC_LONGTEXT N_( \
106 "Allows you to specify the subtitles encoder to use and its associated " \
108 #define SCODEC_TEXT N_("Destination subtitles codec")
109 #define SCODEC_LONGTEXT N_( \
110 "Allows you to specify the destination subtitles codec used for the " \
111 "streaming output." )
112 #define SFILTER_TEXT N_("Subpictures filter")
113 #define SFILTER_LONGTEXT N_( \
114 "Allows you to specify subpictures filters used during the video " \
115 "transcoding. The subpictures produced by the filters will be overlayed " \
116 "directly onto the video." )
118 #define THREADS_TEXT N_("Number of threads")
119 #define THREADS_LONGTEXT N_( \
120 "Allows you to specify the number of threads used for the transcoding." )
122 #define ASYNC_TEXT N_("Synchronise on audio track")
123 #define ASYNC_LONGTEXT N_( \
124 "This option will drop/duplicate video frames to synchronise the video " \
125 "track on the audio track." )
127 static int Open ( vlc_object_t * );
128 static void Close( vlc_object_t * );
130 #define SOUT_CFG_PREFIX "sout-transcode-"
133 set_shortname( _("Transcode"));
134 set_description( _("Transcode stream output") );
135 set_capability( "sout stream", 50 );
136 add_shortcut( "transcode" );
137 set_callbacks( Open, Close );
138 set_category( CAT_SOUT );
139 set_subcategory( SUBCAT_SOUT_STREAM );
140 set_section( N_("Video"), NULL );
141 add_string( SOUT_CFG_PREFIX "venc", NULL, NULL, VENC_TEXT,
142 VENC_LONGTEXT, VLC_FALSE );
143 add_string( SOUT_CFG_PREFIX "vcodec", NULL, NULL, VCODEC_TEXT,
144 VCODEC_LONGTEXT, VLC_FALSE );
145 add_integer( SOUT_CFG_PREFIX "vb", 800 * 1000, NULL, VB_TEXT,
146 VB_LONGTEXT, VLC_FALSE );
147 add_float( SOUT_CFG_PREFIX "scale", 1, NULL, SCALE_TEXT,
148 SCALE_LONGTEXT, VLC_FALSE );
149 add_float( SOUT_CFG_PREFIX "fps", 0, NULL, FPS_TEXT,
150 FPS_LONGTEXT, VLC_FALSE );
151 add_bool( SOUT_CFG_PREFIX "deinterlace", 0, NULL, DEINTERLACE_TEXT,
152 DEINTERLACE_LONGTEXT, VLC_FALSE );
153 add_integer( SOUT_CFG_PREFIX "width", 0, NULL, WIDTH_TEXT,
154 WIDTH_LONGTEXT, VLC_TRUE );
155 add_integer( SOUT_CFG_PREFIX "height", 0, NULL, HEIGHT_TEXT,
156 HEIGHT_LONGTEXT, VLC_TRUE );
158 add_integer( SOUT_CFG_PREFIX "croptop", 0, NULL, CROPTOP_TEXT,
159 CROPTOP_LONGTEXT, VLC_TRUE );
160 add_integer( SOUT_CFG_PREFIX "cropleft", 0, NULL, CROPLEFT_TEXT,
161 CROPLEFT_LONGTEXT, VLC_TRUE );
162 add_integer( SOUT_CFG_PREFIX "cropbottom", 0, NULL, CROPBOTTOM_TEXT,
163 CROPBOTTOM_LONGTEXT, VLC_TRUE );
164 add_integer( SOUT_CFG_PREFIX "cropright", 0, NULL, CROPRIGHT_TEXT,
165 CROPRIGHT_LONGTEXT, VLC_TRUE );
167 set_section( N_("Audio"), NULL );
168 add_string( SOUT_CFG_PREFIX "aenc", NULL, NULL, AENC_TEXT,
169 AENC_LONGTEXT, VLC_FALSE );
170 add_string( SOUT_CFG_PREFIX "acodec", NULL, NULL, ACODEC_TEXT,
171 ACODEC_LONGTEXT, VLC_FALSE );
172 add_integer( SOUT_CFG_PREFIX "ab", 64000, NULL, AB_TEXT,
173 AB_LONGTEXT, VLC_FALSE );
174 add_integer( SOUT_CFG_PREFIX "channels", 0, NULL, ACHANS_TEXT,
175 ACHANS_LONGTEXT, VLC_FALSE );
176 add_integer( SOUT_CFG_PREFIX "samplerate", 0, NULL, ARATE_TEXT,
177 ARATE_LONGTEXT, VLC_TRUE );
178 add_bool( SOUT_CFG_PREFIX "audio-sync", 0, NULL, ASYNC_TEXT,
179 ASYNC_LONGTEXT, VLC_FALSE );
181 set_section( N_("Overlays/Subtitles"), NULL );
182 add_string( SOUT_CFG_PREFIX "senc", NULL, NULL, SENC_TEXT,
183 SENC_LONGTEXT, VLC_FALSE );
184 add_string( SOUT_CFG_PREFIX "scodec", NULL, NULL, SCODEC_TEXT,
185 SCODEC_LONGTEXT, VLC_FALSE );
186 add_bool( SOUT_CFG_PREFIX "soverlay", 0, NULL, SCODEC_TEXT,
187 SCODEC_LONGTEXT, VLC_FALSE );
188 add_module_list_cat( SOUT_CFG_PREFIX "sfilter", SUBCAT_VIDEO_SUBPIC,
190 SFILTER_TEXT, SFILTER_LONGTEXT, VLC_FALSE );
192 set_section( N_("Miscellaneous"), NULL );
193 add_integer( SOUT_CFG_PREFIX "threads", 0, NULL, THREADS_TEXT,
194 THREADS_LONGTEXT, VLC_TRUE );
198 static const char *ppsz_sout_options[] = {
199 "venc", "vcodec", "vb", "croptop", "cropbottom", "cropleft", "cropright",
200 "scale", "fps", "width", "height", "deinterlace", "threads",
201 "aenc", "acodec", "ab", "samplerate", "channels",
202 "senc", "scodec", "soverlay", "sfilter",
206 /*****************************************************************************
207 * Exported prototypes
208 *****************************************************************************/
209 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
210 static int Del ( sout_stream_t *, sout_stream_id_t * );
211 static int Send( sout_stream_t *, sout_stream_id_t *, block_t* );
213 static int transcode_audio_new ( sout_stream_t *, sout_stream_id_t * );
214 static void transcode_audio_close ( sout_stream_t *, sout_stream_id_t * );
215 static int transcode_audio_process( sout_stream_t *, sout_stream_id_t *,
216 block_t *, block_t ** );
218 static aout_buffer_t *audio_new_buffer( decoder_t *, int );
219 static void audio_del_buffer( decoder_t *, aout_buffer_t * );
221 static int transcode_video_new ( sout_stream_t *, sout_stream_id_t * );
222 static void transcode_video_close ( sout_stream_t *, sout_stream_id_t * );
223 static int transcode_video_encoder_open( sout_stream_t *, sout_stream_id_t *);
224 static int transcode_video_process( sout_stream_t *, sout_stream_id_t *,
225 block_t *, block_t ** );
227 static void video_del_buffer( vlc_object_t *, picture_t * );
228 static picture_t *video_new_buffer_decoder( decoder_t * );
229 static void video_del_buffer_decoder( decoder_t *, picture_t * );
230 static void video_link_picture_decoder( decoder_t *, picture_t * );
231 static void video_unlink_picture_decoder( decoder_t *, picture_t * );
232 static picture_t *video_new_buffer_filter( filter_t * );
233 static void video_del_buffer_filter( filter_t *, picture_t * );
235 static int transcode_spu_new ( sout_stream_t *, sout_stream_id_t * );
236 static void transcode_spu_close ( sout_stream_t *, sout_stream_id_t * );
237 static int transcode_spu_process( sout_stream_t *, sout_stream_id_t *,
238 block_t *, block_t ** );
240 static int EncoderThread( struct sout_stream_sys_t * p_sys );
242 static int pi_channels_maps[6] =
245 AOUT_CHAN_CENTER, AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
246 AOUT_CHAN_CENTER | AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
247 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_REARLEFT
248 | AOUT_CHAN_REARRIGHT,
249 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
250 | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
253 #define PICTURE_RING_SIZE 64
254 #define SUBPICTURE_RING_SIZE 20
256 struct sout_stream_sys_t
260 sout_stream_t *p_out;
261 sout_stream_id_t *id_video;
263 vlc_mutex_t lock_out;
265 picture_t * pp_pics[PICTURE_RING_SIZE];
266 int i_first_pic, i_last_pic;
269 vlc_fourcc_t i_acodec; /* codec audio (0 if not transcode) */
271 sout_cfg_t *p_audio_cfg;
277 vlc_fourcc_t i_vcodec; /* codec video (0 if not transcode) */
279 sout_cfg_t *p_video_cfg;
285 vlc_bool_t b_deinterlace;
294 vlc_fourcc_t i_scodec; /* codec spu (0 if not transcode) */
296 vlc_bool_t b_soverlay;
297 sout_cfg_t *p_spu_cfg;
301 vlc_bool_t b_master_sync;
302 mtime_t i_master_drift;
305 struct decoder_owner_sys_t
307 picture_t *pp_pics[PICTURE_RING_SIZE];
309 struct filter_owner_sys_t
311 picture_t *pp_pics[PICTURE_RING_SIZE];
314 /*****************************************************************************
316 *****************************************************************************/
317 static int Open( vlc_object_t *p_this )
319 sout_stream_t *p_stream = (sout_stream_t*)p_this;
320 sout_stream_sys_t *p_sys;
323 p_sys = vlc_object_create( p_this, sizeof( sout_stream_sys_t ) );
325 p_sys->p_out = sout_StreamNew( p_stream->p_sout, p_stream->psz_next );
328 msg_Err( p_stream, "cannot create chain" );
329 vlc_object_destroy( p_sys );
333 p_sys->i_master_drift = 0;
335 sout_CfgParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
338 /* Audio transcoding parameters */
339 var_Get( p_stream, SOUT_CFG_PREFIX "aenc", &val );
340 p_sys->psz_aenc = NULL;
341 p_sys->p_audio_cfg = NULL;
342 if( val.psz_string && *val.psz_string )
345 psz_next = sout_CfgCreate( &p_sys->psz_aenc, &p_sys->p_audio_cfg,
347 if( psz_next ) free( psz_next );
349 if( val.psz_string ) free( val.psz_string );
351 var_Get( p_stream, SOUT_CFG_PREFIX "acodec", &val );
353 if( val.psz_string && *val.psz_string )
356 memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
357 p_sys->i_acodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
359 if( val.psz_string ) free( val.psz_string );
361 var_Get( p_stream, SOUT_CFG_PREFIX "ab", &val );
362 p_sys->i_abitrate = val.i_int;
363 if( p_sys->i_abitrate < 4000 ) p_sys->i_abitrate *= 1000;
365 var_Get( p_stream, SOUT_CFG_PREFIX "samplerate", &val );
366 p_sys->i_sample_rate = val.i_int;
368 var_Get( p_stream, SOUT_CFG_PREFIX "channels", &val );
369 p_sys->i_channels = val.i_int;
371 if( p_sys->i_acodec )
373 msg_Dbg( p_stream, "codec audio=%4.4s %dHz %d channels %dKb/s",
374 (char *)&p_sys->i_acodec, p_sys->i_sample_rate,
375 p_sys->i_channels, p_sys->i_abitrate / 1000 );
378 /* Video transcoding parameters */
379 var_Get( p_stream, SOUT_CFG_PREFIX "venc", &val );
380 p_sys->psz_venc = NULL;
381 p_sys->p_video_cfg = NULL;
382 if( val.psz_string && *val.psz_string )
385 psz_next = sout_CfgCreate( &p_sys->psz_venc, &p_sys->p_video_cfg,
387 if( psz_next ) free( psz_next );
389 if( val.psz_string ) free( val.psz_string );
391 var_Get( p_stream, SOUT_CFG_PREFIX "vcodec", &val );
393 if( val.psz_string && *val.psz_string )
396 memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
397 p_sys->i_vcodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
399 if( val.psz_string ) free( val.psz_string );
401 var_Get( p_stream, SOUT_CFG_PREFIX "vb", &val );
402 p_sys->i_vbitrate = val.i_int;
403 if( p_sys->i_vbitrate < 16000 ) p_sys->i_vbitrate *= 1000;
405 var_Get( p_stream, SOUT_CFG_PREFIX "scale", &val );
406 p_sys->f_scale = val.f_float;
408 var_Get( p_stream, SOUT_CFG_PREFIX "fps", &val );
409 p_sys->f_fps = val.f_float;
411 var_Get( p_stream, SOUT_CFG_PREFIX "width", &val );
412 p_sys->i_width = val.i_int;
414 var_Get( p_stream, SOUT_CFG_PREFIX "height", &val );
415 p_sys->i_height = val.i_int;
417 var_Get( p_stream, SOUT_CFG_PREFIX "deinterlace", &val );
418 p_sys->b_deinterlace = val.b_bool;
420 var_Get( p_stream, SOUT_CFG_PREFIX "croptop", &val );
421 p_sys->i_crop_top = val.i_int;
422 var_Get( p_stream, SOUT_CFG_PREFIX "cropbottom", &val );
423 p_sys->i_crop_bottom = val.i_int;
424 var_Get( p_stream, SOUT_CFG_PREFIX "cropleft", &val );
425 p_sys->i_crop_left = val.i_int;
426 var_Get( p_stream, SOUT_CFG_PREFIX "cropright", &val );
427 p_sys->i_crop_right = val.i_int;
429 var_Get( p_stream, SOUT_CFG_PREFIX "threads", &val );
430 p_sys->i_threads = val.i_int;
432 if( p_sys->i_vcodec )
434 msg_Dbg( p_stream, "codec video=%4.4s %dx%d scaling: %f %dkb/s",
435 (char *)&p_sys->i_vcodec, p_sys->i_width, p_sys->i_height,
436 p_sys->f_scale, p_sys->i_vbitrate / 1000 );
439 /* Subpictures transcoding parameters */
441 p_sys->psz_senc = NULL;
442 p_sys->p_spu_cfg = NULL;
445 var_Get( p_stream, SOUT_CFG_PREFIX "senc", &val );
446 if( val.psz_string && *val.psz_string )
449 psz_next = sout_CfgCreate( &p_sys->psz_senc, &p_sys->p_spu_cfg,
451 if( psz_next ) free( psz_next );
453 if( val.psz_string ) free( val.psz_string );
455 var_Get( p_stream, SOUT_CFG_PREFIX "scodec", &val );
456 if( val.psz_string && *val.psz_string )
459 memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
460 p_sys->i_scodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
462 if( val.psz_string ) free( val.psz_string );
464 if( p_sys->i_scodec )
466 msg_Dbg( p_stream, "codec spu=%4.4s", (char *)&p_sys->i_scodec );
469 var_Get( p_stream, SOUT_CFG_PREFIX "soverlay", &val );
470 p_sys->b_soverlay = val.b_bool;
472 var_Get( p_stream, SOUT_CFG_PREFIX "sfilter", &val );
473 if( val.psz_string && *val.psz_string )
475 p_sys->p_spu = spu_Create( p_stream );
476 var_Create( p_sys->p_spu, "sub-filter", VLC_VAR_STRING );
477 var_Set( p_sys->p_spu, "sub-filter", val );
478 spu_Init( p_sys->p_spu );
480 if( val.psz_string ) free( val.psz_string );
482 var_Get( p_stream, SOUT_CFG_PREFIX "audio-sync", &val );
483 p_sys->b_master_sync = val.b_bool;
484 if( p_sys->f_fps > 0 ) p_sys->b_master_sync = VLC_TRUE;
486 p_stream->pf_add = Add;
487 p_stream->pf_del = Del;
488 p_stream->pf_send = Send;
489 p_stream->p_sys = p_sys;
494 /*****************************************************************************
496 *****************************************************************************/
497 static void Close( vlc_object_t * p_this )
499 sout_stream_t *p_stream = (sout_stream_t*)p_this;
500 sout_stream_sys_t *p_sys = p_stream->p_sys;
502 sout_StreamDelete( p_sys->p_out );
504 while( p_sys->p_audio_cfg != NULL )
506 sout_cfg_t *p_next = p_sys->p_audio_cfg->p_next;
508 if( p_sys->p_audio_cfg->psz_name )
509 free( p_sys->p_audio_cfg->psz_name );
510 if( p_sys->p_audio_cfg->psz_value )
511 free( p_sys->p_audio_cfg->psz_value );
512 free( p_sys->p_audio_cfg );
514 p_sys->p_audio_cfg = p_next;
516 if( p_sys->psz_aenc ) free( p_sys->psz_aenc );
518 while( p_sys->p_video_cfg != NULL )
520 sout_cfg_t *p_next = p_sys->p_video_cfg->p_next;
522 if( p_sys->p_video_cfg->psz_name )
523 free( p_sys->p_video_cfg->psz_name );
524 if( p_sys->p_video_cfg->psz_value )
525 free( p_sys->p_video_cfg->psz_value );
526 free( p_sys->p_video_cfg );
528 p_sys->p_video_cfg = p_next;
530 if( p_sys->psz_venc ) free( p_sys->psz_venc );
532 while( p_sys->p_spu_cfg != NULL )
534 sout_cfg_t *p_next = p_sys->p_spu_cfg->p_next;
536 if( p_sys->p_spu_cfg->psz_name )
537 free( p_sys->p_spu_cfg->psz_name );
538 if( p_sys->p_spu_cfg->psz_value )
539 free( p_sys->p_spu_cfg->psz_value );
540 free( p_sys->p_spu_cfg );
542 p_sys->p_spu_cfg = p_next;
544 if( p_sys->psz_senc ) free( p_sys->psz_senc );
546 if( p_sys->p_spu ) spu_Destroy( p_sys->p_spu );
548 vlc_object_destroy( p_sys );
551 struct sout_stream_id_t
553 vlc_fourcc_t b_transcode;
555 /* id of the out stream */
559 decoder_t *p_decoder;
562 filter_t *pp_filter[10];
566 encoder_t *p_encoder;
569 date_t interpolated_pts;
573 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
575 sout_stream_sys_t *p_sys = p_stream->p_sys;
576 sout_stream_id_t *id;
578 id = malloc( sizeof( sout_stream_id_t ) );
579 memset( id, 0, sizeof(sout_stream_id_t) );
582 id->p_decoder = NULL;
583 id->p_encoder = NULL;
585 /* Create decoder object */
586 id->p_decoder = vlc_object_create( p_stream, VLC_OBJECT_DECODER );
589 msg_Err( p_stream, "out of memory" );
592 vlc_object_attach( id->p_decoder, p_stream );
593 id->p_decoder->p_module = NULL;
594 id->p_decoder->fmt_in = *p_fmt;
595 id->p_decoder->fmt_out = *p_fmt;
596 id->p_decoder->fmt_out.i_extra = 0;
597 id->p_decoder->fmt_out.p_extra = 0;
598 id->p_decoder->b_pace_control = VLC_TRUE;
600 /* Create encoder object */
601 id->p_encoder = vlc_object_create( p_stream, VLC_OBJECT_ENCODER );
604 msg_Err( p_stream, "out of memory" );
607 vlc_object_attach( id->p_encoder, p_stream );
608 id->p_encoder->p_module = NULL;
610 /* Create destination format */
611 es_format_Init( &id->p_encoder->fmt_out, p_fmt->i_cat, 0 );
612 id->p_encoder->fmt_out.i_id = p_fmt->i_id;
613 id->p_encoder->fmt_out.i_group = p_fmt->i_group;
614 if( p_fmt->psz_language )
615 id->p_encoder->fmt_out.psz_language = strdup( p_fmt->psz_language );
617 if( p_fmt->i_cat == AUDIO_ES && (p_sys->i_acodec || p_sys->psz_aenc) )
620 "creating audio transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
621 (char*)&p_fmt->i_codec, (char*)&p_sys->i_acodec );
623 /* Complete destination format */
624 id->p_encoder->fmt_out.i_codec = p_sys->i_acodec;
625 id->p_encoder->fmt_out.audio.i_rate = p_sys->i_sample_rate > 0 ?
626 p_sys->i_sample_rate : (int)p_fmt->audio.i_rate;
627 id->p_encoder->fmt_out.audio.i_channels = p_sys->i_channels > 0 ?
628 p_sys->i_channels : p_fmt->audio.i_channels;
629 id->p_encoder->fmt_out.i_bitrate = p_sys->i_abitrate;
630 id->p_encoder->fmt_out.audio.i_bitspersample =
631 p_fmt->audio.i_bitspersample;
633 /* Build decoder -> filter -> encoder chain */
634 if( transcode_audio_new( p_stream, id ) )
636 msg_Err( p_stream, "cannot create audio chain" );
640 /* Open output stream */
641 id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
642 id->b_transcode = VLC_TRUE;
644 if( !id->id ) goto error;
646 date_Init( &id->interpolated_pts, p_fmt->audio.i_rate, 1 );
648 else if( p_fmt->i_cat == VIDEO_ES &&
649 (p_sys->i_vcodec != 0 || p_sys->psz_venc) )
652 "creating video transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
653 (char*)&p_fmt->i_codec, (char*)&p_sys->i_vcodec );
655 /* Complete destination format */
656 id->p_encoder->fmt_out.i_codec = p_sys->i_vcodec;
657 id->p_encoder->fmt_out.video.i_width = p_sys->i_width;
658 id->p_encoder->fmt_out.video.i_height = p_sys->i_height;
659 id->p_encoder->fmt_out.i_bitrate = p_sys->i_vbitrate;
661 /* Build decoder -> filter -> encoder chain */
662 if( transcode_video_new( p_stream, id ) )
664 msg_Err( p_stream, "cannot create video chain" );
668 /* Stream will be added later on because we don't know
669 * all the characteristics of the decoded stream yet */
670 id->b_transcode = VLC_TRUE;
672 if( p_sys->f_fps > 0 )
674 id->p_encoder->fmt_out.video.i_frame_rate = p_sys->f_fps * 1000;
675 id->p_encoder->fmt_out.video.i_frame_rate_base = 1000;
678 else if( p_fmt->i_cat == SPU_ES && (p_sys->i_scodec || p_sys->psz_senc) )
680 msg_Dbg( p_stream, "creating subtitles transcoding from fcc=`%4.4s' "
681 "to fcc=`%4.4s'", (char*)&p_fmt->i_codec,
682 (char*)&p_sys->i_scodec );
684 /* Complete destination format */
685 id->p_encoder->fmt_out.i_codec = p_sys->i_scodec;
687 /* build decoder -> filter -> encoder */
688 if( transcode_spu_new( p_stream, id ) )
690 msg_Err( p_stream, "cannot create subtitles chain" );
694 /* open output stream */
695 id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
696 id->b_transcode = VLC_TRUE;
698 if( !id->id ) goto error;
700 else if( p_fmt->i_cat == SPU_ES && p_sys->b_soverlay )
702 msg_Dbg( p_stream, "subtitles (fcc=`%4.4s') overlaying",
703 (char*)&p_fmt->i_codec );
705 id->b_transcode = VLC_TRUE;
707 /* Build decoder -> filter -> overlaying chain */
708 if( transcode_spu_new( p_stream, id ) )
710 msg_Err( p_stream, "cannot create subtitles chain" );
716 msg_Dbg( p_stream, "not transcoding a stream (fcc=`%4.4s')",
717 (char*)&p_fmt->i_codec );
718 id->id = p_sys->p_out->pf_add( p_sys->p_out, p_fmt );
719 id->b_transcode = VLC_FALSE;
721 if( !id->id ) goto error;
729 vlc_object_detach( id->p_decoder );
730 vlc_object_destroy( id->p_decoder );
735 vlc_object_detach( id->p_encoder );
736 vlc_object_destroy( id->p_encoder );
743 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
745 sout_stream_sys_t *p_sys = p_stream->p_sys;
747 if( id->b_transcode )
749 switch( id->p_decoder->fmt_in.i_cat )
752 transcode_audio_close( p_stream, id );
755 transcode_video_close( p_stream, id );
758 transcode_spu_close( p_stream, id );
763 if( id->id ) p_sys->p_out->pf_del( p_sys->p_out, id->id );
767 vlc_object_detach( id->p_decoder );
768 vlc_object_destroy( id->p_decoder );
773 vlc_object_detach( id->p_encoder );
774 vlc_object_destroy( id->p_encoder );
782 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
785 sout_stream_sys_t *p_sys = p_stream->p_sys;
788 if( !id->b_transcode && id->id )
790 if( p_sys->b_master_sync && p_sys->i_master_drift )
792 if( p_buffer->i_dts > 0 )
794 p_buffer->i_dts -= p_sys->i_master_drift;
795 if( p_buffer->i_dts < 0 )
797 block_Release( p_buffer );
801 if( p_buffer->i_pts > 0 )
803 p_buffer->i_pts -= p_sys->i_master_drift;
804 if( p_buffer->i_pts < 0 )
806 block_Release( p_buffer );
812 return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_buffer );
814 else if( !id->b_transcode )
816 block_Release( p_buffer );
820 switch( id->p_decoder->fmt_in.i_cat )
823 transcode_audio_process( p_stream, id, p_buffer, &p_out );
827 if( transcode_video_process( p_stream, id, p_buffer, &p_out )
835 if( transcode_spu_process( p_stream, id, p_buffer, &p_out ) !=
843 block_Release( p_buffer );
847 if( p_out ) return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_out );
851 /****************************************************************************
852 * decoder reencoder part
853 ****************************************************************************/
854 int audio_BitsPerSample( vlc_fourcc_t i_format )
858 case VLC_FOURCC('u','8',' ',' '):
859 case VLC_FOURCC('s','8',' ',' '):
862 case VLC_FOURCC('u','1','6','l'):
863 case VLC_FOURCC('s','1','6','l'):
864 case VLC_FOURCC('u','1','6','b'):
865 case VLC_FOURCC('s','1','6','b'):
868 case VLC_FOURCC('u','2','4','l'):
869 case VLC_FOURCC('s','2','4','l'):
870 case VLC_FOURCC('u','2','4','b'):
871 case VLC_FOURCC('s','2','4','b'):
874 case VLC_FOURCC('u','3','2','l'):
875 case VLC_FOURCC('s','3','2','l'):
876 case VLC_FOURCC('u','3','2','b'):
877 case VLC_FOURCC('s','3','2','b'):
878 case VLC_FOURCC('f','l','3','2'):
879 case VLC_FOURCC('f','i','3','2'):
882 case VLC_FOURCC('f','l','6','4'):
889 static int transcode_audio_new( sout_stream_t *p_stream,
890 sout_stream_id_t *id )
892 sout_stream_sys_t *p_sys = p_stream->p_sys;
898 /* Initialization of decoder structures */
899 id->p_decoder->pf_decode_audio = 0;
900 id->p_decoder->pf_aout_buffer_new = audio_new_buffer;
901 id->p_decoder->pf_aout_buffer_del = audio_del_buffer;
902 //id->p_decoder->p_cfg = p_sys->p_video_cfg;
904 id->p_decoder->p_module =
905 module_Need( id->p_decoder, "decoder", "$codec", 0 );
907 if( !id->p_decoder->p_module )
909 msg_Err( p_stream, "cannot find decoder" );
912 id->p_decoder->fmt_out.audio.i_bitspersample =
913 audio_BitsPerSample( id->p_decoder->fmt_out.i_codec );
919 /* Initialization of encoder format structures */
920 es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
921 id->p_decoder->fmt_out.i_codec );
922 id->p_encoder->fmt_in.audio.i_format = id->p_decoder->fmt_out.i_codec;
924 /* Sanity check for audio channels */
925 id->p_encoder->fmt_out.audio.i_channels =
926 __MIN( id->p_encoder->fmt_out.audio.i_channels,
927 id->p_decoder->fmt_out.audio.i_channels );
928 if( id->p_decoder->fmt_out.audio.i_channels ==
929 id->p_encoder->fmt_out.audio.i_channels )
930 id->p_encoder->fmt_out.audio.i_physical_channels =
931 id->p_encoder->fmt_out.audio.i_original_channels =
932 id->p_decoder->fmt_out.audio.i_physical_channels;
934 id->p_encoder->fmt_out.audio.i_physical_channels =
935 id->p_encoder->fmt_out.audio.i_original_channels =
936 pi_channels_maps[id->p_encoder->fmt_out.audio.i_channels];
938 /* Initialization of encoder format structures */
939 es_format_Init( &id->p_encoder->fmt_in, AUDIO_ES, AOUT_FMT_S16_NE );
940 id->p_encoder->fmt_in.audio.i_format = AOUT_FMT_S16_NE;
941 id->p_encoder->fmt_in.audio.i_rate = id->p_encoder->fmt_out.audio.i_rate;
942 id->p_encoder->fmt_in.audio.i_physical_channels =
943 id->p_encoder->fmt_in.audio.i_original_channels =
944 id->p_encoder->fmt_out.audio.i_physical_channels;
945 id->p_encoder->fmt_in.audio.i_channels =
946 id->p_encoder->fmt_out.audio.i_channels;
947 id->p_encoder->fmt_in.audio.i_bitspersample =
948 audio_BitsPerSample( id->p_encoder->fmt_in.i_codec );
950 id->p_encoder->p_cfg = p_stream->p_sys->p_audio_cfg;
952 id->p_encoder->p_module =
953 module_Need( id->p_encoder, "encoder", p_sys->psz_aenc, VLC_TRUE );
954 if( !id->p_encoder->p_module )
956 msg_Err( p_stream, "cannot find encoder" );
957 module_Unneed( id->p_decoder, id->p_decoder->p_module );
958 id->p_decoder->p_module = 0;
961 id->p_encoder->fmt_in.audio.i_format = id->p_encoder->fmt_in.i_codec;
962 id->p_encoder->fmt_in.audio.i_bitspersample =
963 audio_BitsPerSample( id->p_encoder->fmt_in.i_codec );
965 /* Check if we need a filter for chroma conversion or resizing */
966 if( id->p_decoder->fmt_out.i_codec !=
967 id->p_encoder->fmt_in.i_codec )
970 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
971 vlc_object_attach( id->pp_filter[0], p_stream );
973 id->pp_filter[0]->pf_audio_buffer_new = __block_New;
975 id->pp_filter[0]->fmt_in = id->p_decoder->fmt_out;
976 id->pp_filter[0]->fmt_out = id->p_encoder->fmt_in;
977 id->pp_filter[0]->p_module =
978 module_Need( id->pp_filter[0], "audio filter2", 0, 0 );
979 if( id->pp_filter[0]->p_module ) id->i_filter++;
982 msg_Dbg( p_stream, "no audio filter found (%4.4s->%4.4s)",
983 (char *)&id->pp_filter[0]->fmt_in,
984 (char *)&id->pp_filter[0]->fmt_out );
985 vlc_object_detach( id->pp_filter[0] );
986 vlc_object_destroy( id->pp_filter[0] );
987 module_Unneed( id->p_decoder, id->p_decoder->p_module );
988 id->p_decoder->p_module = 0;
989 module_Unneed( id->p_encoder, id->p_encoder->p_module );
990 id->p_encoder->p_module = 0;
994 id->pp_filter[0]->fmt_out.audio.i_bitspersample =
995 audio_BitsPerSample( id->pp_filter[0]->fmt_out.i_codec );
997 /* Try a 2 stage conversion */
998 if( id->pp_filter[0]->fmt_out.i_codec !=
999 id->p_encoder->fmt_in.i_codec )
1002 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1003 vlc_object_attach( id->pp_filter[1], p_stream );
1005 id->pp_filter[1]->pf_audio_buffer_new = __block_New;
1007 id->pp_filter[1]->fmt_in = id->pp_filter[0]->fmt_out;
1008 id->pp_filter[1]->fmt_out = id->p_encoder->fmt_in;
1009 id->pp_filter[1]->p_module =
1010 module_Need( id->pp_filter[1], "audio filter2", 0, 0 );
1011 if( !id->pp_filter[1]->p_module ||
1012 id->pp_filter[1]->fmt_out.i_codec !=
1013 id->p_encoder->fmt_in.i_codec )
1015 msg_Dbg( p_stream, "no audio filter found (%4.4s->%4.4s)",
1016 (char *)&id->pp_filter[1]->fmt_in,
1017 (char *)&id->pp_filter[1]->fmt_out );
1018 module_Unneed( id->pp_filter[0], id->pp_filter[0]->p_module );
1019 vlc_object_detach( id->pp_filter[0] );
1020 vlc_object_destroy( id->pp_filter[0] );
1021 if( id->pp_filter[1]->p_module )
1022 module_Unneed( id->pp_filter[0], id->pp_filter[0]->p_module );
1023 vlc_object_detach( id->pp_filter[1] );
1024 vlc_object_destroy( id->pp_filter[1] );
1025 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1026 id->p_decoder->p_module = 0;
1027 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1028 id->p_encoder->p_module = 0;
1029 return VLC_EGENERIC;
1031 else id->i_filter++;
1035 /* FIXME: Hack for mp3 transcoding support */
1036 if( id->p_encoder->fmt_out.i_codec == VLC_FOURCC( 'm','p','3',' ' ) )
1037 id->p_encoder->fmt_out.i_codec = VLC_FOURCC( 'm','p','g','a' );
1042 static void transcode_audio_close( sout_stream_t *p_stream,
1043 sout_stream_id_t *id )
1048 if( id->p_decoder->p_module )
1049 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1052 if( id->p_encoder->p_module )
1053 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1056 for( i = 0; i < id->i_filter; i++ )
1058 vlc_object_detach( id->pp_filter[i] );
1059 if( id->pp_filter[i]->p_module )
1060 module_Unneed( id->pp_filter[i], id->pp_filter[i]->p_module );
1061 vlc_object_destroy( id->pp_filter[i] );
1065 static int transcode_audio_process( sout_stream_t *p_stream,
1066 sout_stream_id_t *id,
1067 block_t *in, block_t **out )
1069 sout_stream_sys_t *p_sys = p_stream->p_sys;
1070 aout_buffer_t *p_audio_buf;
1071 block_t *p_block, *p_audio_block;
1075 while( (p_audio_buf = id->p_decoder->pf_decode_audio( id->p_decoder,
1078 if( p_sys->b_master_sync )
1080 mtime_t i_dts = date_Get( &id->interpolated_pts ) + 1;
1081 p_sys->i_master_drift = p_audio_buf->start_date - i_dts;
1082 date_Increment( &id->interpolated_pts, p_audio_buf->i_nb_samples );
1083 p_audio_buf->start_date -= p_sys->i_master_drift;
1084 p_audio_buf->end_date -= p_sys->i_master_drift;
1087 p_audio_block = p_audio_buf->p_sys;
1088 p_audio_block->i_buffer = p_audio_buf->i_nb_bytes;
1089 p_audio_block->i_dts = p_audio_block->i_pts =
1090 p_audio_buf->start_date;
1091 p_audio_block->i_length = p_audio_buf->end_date -
1092 p_audio_buf->start_date;
1093 p_audio_block->i_samples = p_audio_buf->i_nb_samples;
1095 /* Run filter chain */
1096 for( i = 0; i < id->i_filter; i++ )
1099 id->pp_filter[i]->pf_audio_filter( id->pp_filter[i],
1103 p_audio_buf->p_buffer = p_audio_block->p_buffer;
1104 p_audio_buf->i_nb_bytes = p_audio_block->i_buffer;
1105 p_audio_buf->i_nb_samples = p_audio_block->i_samples;
1106 p_audio_buf->start_date = p_audio_block->i_dts;
1107 p_audio_buf->end_date = p_audio_block->i_dts + p_audio_block->i_length;
1109 p_block = id->p_encoder->pf_encode_audio( id->p_encoder, p_audio_buf );
1110 block_ChainAppend( out, p_block );
1111 block_Release( p_audio_block );
1112 free( p_audio_buf );
1118 static void audio_release_buffer( aout_buffer_t *p_buffer )
1120 if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1121 if( p_buffer ) free( p_buffer );
1124 static aout_buffer_t *audio_new_buffer( decoder_t *p_dec, int i_samples )
1126 aout_buffer_t *p_buffer;
1130 if( p_dec->fmt_out.audio.i_bitspersample )
1132 i_size = i_samples * p_dec->fmt_out.audio.i_bitspersample / 8 *
1133 p_dec->fmt_out.audio.i_channels;
1135 else if( p_dec->fmt_out.audio.i_bytes_per_frame &&
1136 p_dec->fmt_out.audio.i_frame_length )
1138 i_size = i_samples * p_dec->fmt_out.audio.i_bytes_per_frame /
1139 p_dec->fmt_out.audio.i_frame_length;
1143 i_size = i_samples * 4 * p_dec->fmt_out.audio.i_channels;
1146 p_buffer = malloc( sizeof(aout_buffer_t) );
1147 p_buffer->pf_release = audio_release_buffer;
1148 p_buffer->p_sys = p_block = block_New( p_dec, i_size );
1150 p_buffer->p_buffer = p_block->p_buffer;
1151 p_buffer->i_size = p_buffer->i_nb_bytes = p_block->i_buffer;
1152 p_buffer->i_nb_samples = i_samples;
1153 p_block->i_samples = i_samples;
1158 static void audio_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1160 if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1161 if( p_buffer ) free( p_buffer );
1167 static int transcode_video_new( sout_stream_t *p_stream, sout_stream_id_t *id )
1169 sout_stream_sys_t *p_sys = p_stream->p_sys;
1176 /* Initialization of decoder structures */
1177 id->p_decoder->pf_decode_video = 0;
1178 id->p_decoder->pf_vout_buffer_new = video_new_buffer_decoder;
1179 id->p_decoder->pf_vout_buffer_del = video_del_buffer_decoder;
1180 id->p_decoder->pf_picture_link = video_link_picture_decoder;
1181 id->p_decoder->pf_picture_unlink = video_unlink_picture_decoder;
1182 id->p_decoder->p_owner = malloc( sizeof(decoder_owner_sys_t) );
1183 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1184 id->p_decoder->p_owner->pp_pics[i] = 0;
1185 //id->p_decoder->p_cfg = p_sys->p_video_cfg;
1187 id->p_decoder->p_module =
1188 module_Need( id->p_decoder, "decoder", "$codec", 0 );
1190 if( !id->p_decoder->p_module )
1192 msg_Err( p_stream, "cannot find decoder" );
1193 return VLC_EGENERIC;
1198 * Because some info about the decoded input will only be available
1199 * once the first frame is decoded, we actually only test the availability
1200 * of the encoder here.
1203 /* Initialization of encoder format structures */
1204 es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1205 id->p_decoder->fmt_out.i_codec );
1206 id->p_encoder->fmt_in.video.i_chroma = id->p_decoder->fmt_out.i_codec;
1208 /* The dimensions will be set properly later on.
1209 * Just put sensible values so we can test an encoder is available. */
1210 id->p_encoder->fmt_in.video.i_width =
1211 id->p_encoder->fmt_out.video.i_width ?
1212 id->p_encoder->fmt_out.video.i_width :
1213 id->p_decoder->fmt_in.video.i_width ?
1214 id->p_decoder->fmt_in.video.i_width : 16;
1215 id->p_encoder->fmt_in.video.i_height =
1216 id->p_encoder->fmt_out.video.i_height ?
1217 id->p_encoder->fmt_out.video.i_height :
1218 id->p_decoder->fmt_in.video.i_height ?
1219 id->p_decoder->fmt_in.video.i_height : 16;
1220 id->p_encoder->fmt_in.video.i_frame_rate = 25;
1221 id->p_encoder->fmt_in.video.i_frame_rate_base = 1;
1223 id->p_encoder->i_threads = p_sys->i_threads;
1224 id->p_encoder->p_cfg = p_sys->p_video_cfg;
1226 id->p_encoder->p_module =
1227 module_Need( id->p_encoder, "encoder", p_sys->psz_venc, VLC_TRUE );
1228 if( !id->p_encoder->p_module )
1230 msg_Err( p_stream, "cannot find encoder" );
1231 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1232 id->p_decoder->p_module = 0;
1233 return VLC_EGENERIC;
1236 /* Close the encoder.
1237 * We'll open it only when we have the first frame. */
1238 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1239 id->p_encoder->p_module = NULL;
1241 if( p_sys->i_threads >= 1 )
1243 p_sys->id_video = id;
1244 vlc_mutex_init( p_stream, &p_sys->lock_out );
1245 vlc_cond_init( p_stream, &p_sys->cond );
1246 memset( p_sys->pp_pics, 0, sizeof(p_sys->pp_pics) );
1247 p_sys->i_first_pic = 0;
1248 p_sys->i_last_pic = 0;
1249 p_sys->p_buffers = NULL;
1250 p_sys->b_die = p_sys->b_error = 0;
1251 if( vlc_thread_create( p_sys, "encoder", EncoderThread,
1252 VLC_THREAD_PRIORITY_VIDEO, VLC_FALSE ) )
1254 msg_Err( p_stream, "cannot spawn encoder thread" );
1255 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1256 id->p_decoder->p_module = 0;
1257 return VLC_EGENERIC;
1261 date_Set( &id->interpolated_pts, 0 );
1266 static int transcode_video_encoder_open( sout_stream_t *p_stream,
1267 sout_stream_id_t *id )
1269 sout_stream_sys_t *p_sys = p_stream->p_sys;
1271 /* Hack because of the copy packetizer which can fail to detect the
1272 * proper size (which forces us to wait until the 1st frame
1274 int i_width = id->p_decoder->fmt_out.video.i_width -
1275 p_sys->i_crop_left - p_sys->i_crop_right;
1276 int i_height = id->p_decoder->fmt_out.video.i_height -
1277 p_sys->i_crop_top - p_sys->i_crop_bottom;
1279 if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1280 id->p_encoder->fmt_out.video.i_height <= 0 && p_sys->f_scale )
1282 /* Apply the scaling */
1283 id->p_encoder->fmt_out.video.i_width = i_width * p_sys->f_scale;
1284 id->p_encoder->fmt_out.video.i_height = i_height * p_sys->f_scale;
1286 else if( id->p_encoder->fmt_out.video.i_width > 0 &&
1287 id->p_encoder->fmt_out.video.i_height <= 0 )
1289 id->p_encoder->fmt_out.video.i_height =
1290 id->p_encoder->fmt_out.video.i_width / (double)i_width * i_height;
1292 else if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1293 id->p_encoder->fmt_out.video.i_height > 0 )
1295 id->p_encoder->fmt_out.video.i_width =
1296 id->p_encoder->fmt_out.video.i_height / (double)i_height * i_width;
1299 /* Make sure the size is at least a multiple of 2 */
1300 id->p_encoder->fmt_out.video.i_width =
1301 (id->p_encoder->fmt_out.video.i_width + 1) >> 1 << 1;
1302 id->p_encoder->fmt_out.video.i_height =
1303 (id->p_encoder->fmt_out.video.i_height + 1) >> 1 << 1;
1305 id->p_encoder->fmt_in.video.i_width =
1306 id->p_encoder->fmt_out.video.i_width;
1307 id->p_encoder->fmt_in.video.i_height =
1308 id->p_encoder->fmt_out.video.i_height;
1310 if( !id->p_encoder->fmt_out.video.i_frame_rate ||
1311 !id->p_encoder->fmt_out.video.i_frame_rate_base )
1313 if( id->p_decoder->fmt_out.video.i_frame_rate &&
1314 id->p_decoder->fmt_out.video.i_frame_rate_base )
1316 id->p_encoder->fmt_out.video.i_frame_rate =
1317 id->p_decoder->fmt_out.video.i_frame_rate;
1318 id->p_encoder->fmt_out.video.i_frame_rate_base =
1319 id->p_decoder->fmt_out.video.i_frame_rate_base;
1323 /* Pick a sensible default value */
1324 id->p_encoder->fmt_out.video.i_frame_rate = 25;
1325 id->p_encoder->fmt_out.video.i_frame_rate_base = 1;
1329 id->p_encoder->fmt_in.video.i_frame_rate =
1330 id->p_encoder->fmt_out.video.i_frame_rate;
1331 id->p_encoder->fmt_in.video.i_frame_rate_base =
1332 id->p_encoder->fmt_out.video.i_frame_rate_base;
1334 date_Init( &id->interpolated_pts,
1335 id->p_encoder->fmt_out.video.i_frame_rate,
1336 id->p_encoder->fmt_out.video.i_frame_rate_base );
1338 /* Check whether a particular aspect ratio was requested */
1339 if( !id->p_encoder->fmt_out.video.i_aspect )
1341 id->p_encoder->fmt_out.video.i_aspect =
1342 id->p_decoder->fmt_out.video.i_aspect;
1344 id->p_encoder->fmt_in.video.i_aspect =
1345 id->p_encoder->fmt_out.video.i_aspect;
1347 id->p_encoder->p_module =
1348 module_Need( id->p_encoder, "encoder", p_sys->psz_venc, VLC_TRUE );
1349 if( !id->p_encoder->p_module )
1351 msg_Err( p_stream, "cannot find encoder" );
1352 return VLC_EGENERIC;
1355 id->p_encoder->fmt_in.video.i_chroma = id->p_encoder->fmt_in.i_codec;
1357 /* Hack for mp2v/mp1v transcoding support */
1358 if( id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','1','v') ||
1359 id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','2','v') )
1361 id->p_encoder->fmt_out.i_codec = VLC_FOURCC('m','p','g','v');
1364 id->id = p_stream->p_sys->p_out->pf_add( p_stream->p_sys->p_out,
1365 &id->p_encoder->fmt_out );
1368 msg_Err( p_stream, "cannot add this stream" );
1369 return VLC_EGENERIC;
1375 static void transcode_video_close( sout_stream_t *p_stream,
1376 sout_stream_id_t *id )
1380 if( p_stream->p_sys->i_threads >= 1 )
1382 vlc_mutex_lock( &p_stream->p_sys->lock_out );
1383 p_stream->p_sys->b_die = 1;
1384 vlc_cond_signal( &p_stream->p_sys->cond );
1385 vlc_mutex_unlock( &p_stream->p_sys->lock_out );
1386 vlc_thread_join( p_stream->p_sys );
1387 vlc_mutex_destroy( &p_stream->p_sys->lock_out );
1388 vlc_cond_destroy( &p_stream->p_sys->cond );
1392 if( id->p_decoder->p_module )
1393 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1395 if( id->p_decoder->p_owner )
1397 /* Clean-up pictures ring buffer */
1398 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1400 if( id->p_decoder->p_owner->pp_pics[i] )
1401 video_del_buffer( VLC_OBJECT(id->p_decoder),
1402 id->p_decoder->p_owner->pp_pics[i] );
1404 free( id->p_decoder->p_owner );
1408 if( id->p_encoder->p_module )
1409 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1412 for( i = 0; i < id->i_filter; i++ )
1414 vlc_object_detach( id->pp_filter[i] );
1415 if( id->pp_filter[i]->p_module )
1416 module_Unneed( id->pp_filter[i], id->pp_filter[i]->p_module );
1418 /* Clean-up pictures ring buffer */
1419 for( j = 0; j < PICTURE_RING_SIZE; j++ )
1421 if( id->pp_filter[i]->p_owner->pp_pics[j] )
1422 video_del_buffer( VLC_OBJECT(id->pp_filter[i]),
1423 id->pp_filter[i]->p_owner->pp_pics[j] );
1425 free( id->pp_filter[i]->p_owner );
1427 vlc_object_destroy( id->pp_filter[i] );
1431 static int transcode_video_process( sout_stream_t *p_stream,
1432 sout_stream_id_t *id,
1433 block_t *in, block_t **out )
1435 sout_stream_sys_t *p_sys = p_stream->p_sys;
1436 int i_duplicate = 1, i;
1440 while( (p_pic = id->p_decoder->pf_decode_video( id->p_decoder, &in )) )
1442 subpicture_t *p_subpic = 0;
1444 if( p_sys->b_master_sync )
1446 mtime_t i_video_drift;
1447 mtime_t i_master_drift = p_sys->i_master_drift;
1450 if( !i_master_drift )
1452 /* No audio track ? */
1453 p_sys->i_master_drift = i_master_drift = p_pic->date;
1456 i_pts = date_Get( &id->interpolated_pts ) + 1;
1457 i_video_drift = p_pic->date - i_pts;
1460 /* Set the pts of the frame being encoded */
1461 p_pic->date = i_pts;
1463 if( i_video_drift < i_master_drift - 50000 )
1466 msg_Dbg( p_stream, "dropping frame (%i)",
1467 (int)(i_video_drift - i_master_drift) );
1469 p_pic->pf_release( p_pic );
1470 return VLC_EGENERIC;
1472 else if( i_video_drift > i_master_drift + 50000 )
1475 msg_Dbg( p_stream, "adding frame (%i)",
1476 (int)(i_video_drift - i_master_drift) );
1482 if( !id->p_encoder->p_module )
1484 if( transcode_video_encoder_open( p_stream, id ) != VLC_SUCCESS )
1486 p_pic->pf_release( p_pic );
1487 transcode_video_close( p_stream, id );
1488 id->b_transcode = VLC_FALSE;
1489 return VLC_EGENERIC;
1493 if( p_stream->p_sys->b_deinterlace )
1495 id->pp_filter[id->i_filter] =
1496 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1497 vlc_object_attach( id->pp_filter[id->i_filter], p_stream );
1499 id->pp_filter[id->i_filter]->pf_vout_buffer_new =
1500 video_new_buffer_filter;
1501 id->pp_filter[id->i_filter]->pf_vout_buffer_del =
1502 video_del_buffer_filter;
1504 id->pp_filter[id->i_filter]->fmt_in = id->p_decoder->fmt_out;
1505 id->pp_filter[id->i_filter]->fmt_out = id->p_decoder->fmt_out;
1506 id->pp_filter[id->i_filter]->p_module =
1507 module_Need( id->pp_filter[id->i_filter],
1508 "video filter2", "deinterlace", 0 );
1509 if( id->pp_filter[id->i_filter]->p_module )
1511 id->pp_filter[id->i_filter]->p_owner =
1512 malloc( sizeof(filter_owner_sys_t) );
1513 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1514 id->pp_filter[id->i_filter]->p_owner->pp_pics[i] = 0;
1520 msg_Dbg( p_stream, "no video filter found" );
1521 vlc_object_detach( id->pp_filter[id->i_filter] );
1522 vlc_object_destroy( id->pp_filter[id->i_filter] );
1526 /* Check if we need a filter for chroma conversion or resizing */
1527 if( id->p_decoder->fmt_out.video.i_chroma !=
1528 id->p_encoder->fmt_in.video.i_chroma ||
1529 id->p_decoder->fmt_out.video.i_width !=
1530 id->p_encoder->fmt_out.video.i_width ||
1531 id->p_decoder->fmt_out.video.i_height !=
1532 id->p_encoder->fmt_out.video.i_height ||
1533 p_sys->i_crop_top > 0 || p_sys->i_crop_bottom > 0 ||
1534 p_sys->i_crop_left > 0 || p_sys->i_crop_right > 0 )
1536 id->pp_filter[id->i_filter] =
1537 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1538 vlc_object_attach( id->pp_filter[id->i_filter], p_stream );
1540 id->pp_filter[id->i_filter]->pf_vout_buffer_new =
1541 video_new_buffer_filter;
1542 id->pp_filter[id->i_filter]->pf_vout_buffer_del =
1543 video_del_buffer_filter;
1545 id->pp_filter[id->i_filter]->fmt_in = id->p_decoder->fmt_out;
1546 id->pp_filter[id->i_filter]->fmt_out = id->p_encoder->fmt_in;
1547 id->pp_filter[id->i_filter]->p_module =
1548 module_Need( id->pp_filter[id->i_filter],
1549 "video filter2", 0, 0 );
1550 if( id->pp_filter[id->i_filter]->p_module )
1552 id->pp_filter[id->i_filter]->p_owner =
1553 malloc( sizeof(filter_owner_sys_t) );
1554 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1555 id->pp_filter[id->i_filter]->p_owner->pp_pics[i] = 0;
1561 msg_Dbg( p_stream, "no video filter found" );
1562 vlc_object_detach( id->pp_filter[id->i_filter] );
1563 vlc_object_destroy( id->pp_filter[id->i_filter] );
1565 p_pic->pf_release( p_pic );
1566 transcode_video_close( p_stream, id );
1567 id->b_transcode = VLC_FALSE;
1568 return VLC_EGENERIC;
1573 /* Run filter chain */
1574 for( i = 0; i < id->i_filter; i++ )
1576 p_pic = id->pp_filter[i]->pf_video_filter(id->pp_filter[i], p_pic);
1583 /* Check if we have a subpicture to overlay */
1586 p_subpic = spu_SortSubpictures( p_sys->p_spu, p_pic->date );
1587 /* TODO: get another pic */
1590 /* Overlay subpicture */
1593 int i_scale_width, i_scale_height;
1594 video_format_t *p_fmt;
1596 i_scale_width = id->p_encoder->fmt_in.video.i_width * 1000 /
1597 id->p_decoder->fmt_out.video.i_width;
1598 i_scale_height = id->p_encoder->fmt_in.video.i_height * 1000 /
1599 id->p_decoder->fmt_out.video.i_height;
1601 if( p_pic->i_refcount && !id->i_filter )
1603 /* We can't modify the picture, we need to duplicate it */
1604 picture_t *p_tmp = video_new_buffer_decoder( id->p_decoder );
1607 vout_CopyPicture( p_stream, p_tmp, p_pic );
1608 p_pic->pf_release( p_pic );
1614 p_fmt = &id->pp_filter[id->i_filter -1]->fmt_out.video;
1616 p_fmt = &id->p_decoder->fmt_out.video;
1618 /* FIXME (shouldn't have to be done here) */
1619 p_fmt->i_sar_num = p_fmt->i_aspect *
1620 p_fmt->i_height / p_fmt->i_width;
1621 p_fmt->i_sar_den = VOUT_ASPECT_FACTOR;
1623 spu_RenderSubpictures( p_sys->p_spu, p_fmt, p_pic, p_pic, p_subpic,
1624 i_scale_width, i_scale_height );
1627 if( p_sys->i_threads >= 1 )
1629 vlc_mutex_lock( &p_sys->lock_out );
1630 p_sys->pp_pics[p_sys->i_last_pic++] = p_pic;
1631 p_sys->i_last_pic %= PICTURE_RING_SIZE;
1632 *out = p_sys->p_buffers;
1633 p_sys->p_buffers = NULL;
1634 vlc_cond_signal( &p_sys->cond );
1635 vlc_mutex_unlock( &p_sys->lock_out );
1640 p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
1641 block_ChainAppend( out, p_block );
1643 if( p_sys->b_master_sync )
1644 date_Increment( &id->interpolated_pts, 1 );
1646 if( p_sys->b_master_sync && i_duplicate > 1 )
1648 mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
1649 date_Increment( &id->interpolated_pts, 1 );
1650 p_pic->date = i_pts;
1651 p_block = id->p_encoder->pf_encode_video(id->p_encoder, p_pic);
1652 block_ChainAppend( out, p_block );
1655 p_pic->pf_release( p_pic );
1662 static int EncoderThread( sout_stream_sys_t *p_sys )
1664 sout_stream_id_t *id = p_sys->id_video;
1667 while( !p_sys->b_die && !p_sys->b_error )
1671 vlc_mutex_lock( &p_sys->lock_out );
1672 while( p_sys->i_last_pic == p_sys->i_first_pic )
1674 vlc_cond_wait( &p_sys->cond, &p_sys->lock_out );
1675 if( p_sys->b_die || p_sys->b_error ) break;
1677 if( p_sys->b_die || p_sys->b_error )
1679 vlc_mutex_unlock( &p_sys->lock_out );
1683 p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
1684 p_sys->i_first_pic %= PICTURE_RING_SIZE;
1685 vlc_mutex_unlock( &p_sys->lock_out );
1687 p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
1688 vlc_mutex_lock( &p_sys->lock_out );
1689 block_ChainAppend( &p_sys->p_buffers, p_block );
1691 if( p_sys->b_master_sync )
1692 date_Increment( &id->interpolated_pts, 1 );
1695 if( p_sys->b_master_sync && i_duplicate > 1 )
1697 mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
1698 date_Increment( &id->interpolated_pts, 1 );
1699 p_pic->date = i_pts;
1700 p_block = id->p_encoder->pf_encode_video(id->p_encoder, p_pic);
1701 block_ChainAppend( &p_sys->p_buffers, p_block );
1704 vlc_mutex_unlock( &p_sys->lock_out );
1706 p_pic->pf_release( p_pic );
1709 while( p_sys->i_last_pic != p_sys->i_first_pic )
1711 p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
1712 p_sys->i_first_pic %= PICTURE_RING_SIZE;
1714 p_pic->pf_release( p_pic );
1717 block_ChainRelease( p_sys->p_buffers );
1722 struct picture_sys_t
1724 vlc_object_t *p_owner;
1727 static void video_release_buffer( picture_t *p_pic )
1729 if( p_pic && !p_pic->i_refcount && p_pic->pf_release && p_pic->p_sys )
1731 video_del_buffer_decoder( (decoder_t *)p_pic->p_sys->p_owner, p_pic );
1733 else if( p_pic && p_pic->i_refcount > 0 ) p_pic->i_refcount--;
1736 static picture_t *video_new_buffer( vlc_object_t *p_this, picture_t **pp_ring )
1738 decoder_t *p_dec = (decoder_t *)p_this;
1742 /* Find an empty space in the picture ring buffer */
1743 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1745 if( pp_ring[i] != 0 && pp_ring[i]->i_status == DESTROYED_PICTURE )
1747 pp_ring[i]->i_status = RESERVED_PICTURE;
1751 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1753 if( pp_ring[i] == 0 ) break;
1756 if( i == PICTURE_RING_SIZE )
1758 msg_Err( p_this, "decoder/filter is leaking pictures, "
1759 "resetting its ring buffer" );
1761 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1763 pp_ring[i]->pf_release( pp_ring[i] );
1769 p_pic = malloc( sizeof(picture_t) );
1770 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
1771 vout_AllocatePicture( VLC_OBJECT(p_dec), p_pic,
1772 p_dec->fmt_out.video.i_chroma,
1773 p_dec->fmt_out.video.i_width,
1774 p_dec->fmt_out.video.i_height,
1775 p_dec->fmt_out.video.i_aspect );
1777 if( !p_pic->i_planes )
1783 p_pic->pf_release = video_release_buffer;
1784 p_pic->p_sys = malloc( sizeof(picture_sys_t) );
1785 p_pic->p_sys->p_owner = p_this;
1786 p_pic->i_status = RESERVED_PICTURE;
1793 static picture_t *video_new_buffer_decoder( decoder_t *p_dec )
1795 return video_new_buffer( VLC_OBJECT(p_dec),
1796 p_dec->p_owner->pp_pics );
1799 static picture_t *video_new_buffer_filter( filter_t *p_filter )
1801 return video_new_buffer( VLC_OBJECT(p_filter),
1802 p_filter->p_owner->pp_pics );
1805 static void video_del_buffer( vlc_object_t *p_this, picture_t *p_pic )
1807 if( p_pic && p_pic->p_data_orig ) free( p_pic->p_data_orig );
1808 if( p_pic && p_pic->p_sys ) free( p_pic->p_sys );
1809 if( p_pic ) free( p_pic );
1812 static void video_del_buffer_decoder( decoder_t *p_decoder, picture_t *p_pic )
1814 p_pic->i_refcount = 0;
1815 p_pic->i_status = DESTROYED_PICTURE;
1818 static void video_del_buffer_filter( filter_t *p_filter, picture_t *p_pic )
1820 p_pic->i_refcount = 0;
1821 p_pic->i_status = DESTROYED_PICTURE;
1824 static void video_link_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
1826 p_pic->i_refcount++;
1829 static void video_unlink_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
1831 video_release_buffer( p_pic );
1837 static subpicture_t *spu_new_buffer( decoder_t * );
1838 static void spu_del_buffer( decoder_t *, subpicture_t * );
1840 static int transcode_spu_new( sout_stream_t *p_stream, sout_stream_id_t *id )
1842 sout_stream_sys_t *p_sys = p_stream->p_sys;
1848 /* Initialization of decoder structures */
1849 id->p_decoder->pf_spu_buffer_new = spu_new_buffer;
1850 id->p_decoder->pf_spu_buffer_del = spu_del_buffer;
1851 id->p_decoder->p_owner = (decoder_owner_sys_t *)p_stream;
1852 //id->p_decoder->p_cfg = p_sys->p_spu_cfg;
1854 id->p_decoder->p_module =
1855 module_Need( id->p_decoder, "decoder", "$codec", 0 );
1857 if( !id->p_decoder->p_module )
1859 msg_Err( p_stream, "cannot find decoder" );
1860 return VLC_EGENERIC;
1863 if( !p_sys->b_soverlay )
1869 /* Initialization of encoder format structures */
1870 es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1871 id->p_decoder->fmt_in.i_codec );
1873 id->p_encoder->p_cfg = p_sys->p_spu_cfg;
1875 id->p_encoder->p_module =
1876 module_Need( id->p_encoder, "encoder", p_sys->psz_senc, VLC_TRUE );
1878 if( !id->p_encoder->p_module )
1880 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1881 msg_Err( p_stream, "cannot find encoder" );
1882 return VLC_EGENERIC;
1888 p_sys->p_spu = spu_Create( p_stream );
1889 spu_Init( p_sys->p_spu );
1895 static void transcode_spu_close( sout_stream_t *p_stream, sout_stream_id_t *id)
1898 if( id->p_decoder->p_module )
1899 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1902 if( id->p_encoder->p_module )
1903 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1906 static int transcode_spu_process( sout_stream_t *p_stream,
1907 sout_stream_id_t *id,
1908 block_t *in, block_t **out )
1910 sout_stream_sys_t *p_sys = p_stream->p_sys;
1911 subpicture_t *p_subpic;
1914 p_subpic = id->p_decoder->pf_decode_sub( id->p_decoder, &in );
1915 if( !p_subpic ) return VLC_EGENERIC;
1917 if( p_sys->b_master_sync && p_sys->i_master_drift )
1919 p_subpic->i_start -= p_sys->i_master_drift;
1920 if( p_subpic->i_stop ) p_subpic->i_stop -= p_sys->i_master_drift;
1923 if( p_sys->b_soverlay )
1925 spu_DisplaySubpicture( p_sys->p_spu, p_subpic );
1931 p_block = id->p_encoder->pf_encode_sub( id->p_encoder, p_subpic );
1932 spu_del_buffer( id->p_decoder, p_subpic );
1936 block_ChainAppend( out, p_block );
1941 return VLC_EGENERIC;
1944 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
1946 sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
1947 return spu_CreateSubpicture( p_stream->p_sys->p_spu );
1950 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
1952 sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
1953 spu_DestroySubpicture( p_stream->p_sys->p_spu, p_subpic );