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 if ( ( strncmp( (char *)&p_sys->i_acodec, "mp3", 3) == 0 ) &&
374 ( p_sys->i_channels > 2 ) )
376 msg_Warn( p_stream, "%d channels invalid for mp3, forcing to 2",
378 p_sys->i_channels = 2;
380 msg_Dbg( p_stream, "codec audio=%4.4s %dHz %d channels %dKb/s",
381 (char *)&p_sys->i_acodec, p_sys->i_sample_rate,
382 p_sys->i_channels, p_sys->i_abitrate / 1000 );
385 /* Video transcoding parameters */
386 var_Get( p_stream, SOUT_CFG_PREFIX "venc", &val );
387 p_sys->psz_venc = NULL;
388 p_sys->p_video_cfg = NULL;
389 if( val.psz_string && *val.psz_string )
392 psz_next = sout_CfgCreate( &p_sys->psz_venc, &p_sys->p_video_cfg,
394 if( psz_next ) free( psz_next );
396 if( val.psz_string ) free( val.psz_string );
398 var_Get( p_stream, SOUT_CFG_PREFIX "vcodec", &val );
400 if( val.psz_string && *val.psz_string )
403 memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
404 p_sys->i_vcodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
406 if( val.psz_string ) free( val.psz_string );
408 var_Get( p_stream, SOUT_CFG_PREFIX "vb", &val );
409 p_sys->i_vbitrate = val.i_int;
410 if( p_sys->i_vbitrate < 16000 ) p_sys->i_vbitrate *= 1000;
412 var_Get( p_stream, SOUT_CFG_PREFIX "scale", &val );
413 p_sys->f_scale = val.f_float;
415 var_Get( p_stream, SOUT_CFG_PREFIX "fps", &val );
416 p_sys->f_fps = val.f_float;
418 var_Get( p_stream, SOUT_CFG_PREFIX "width", &val );
419 p_sys->i_width = val.i_int;
421 var_Get( p_stream, SOUT_CFG_PREFIX "height", &val );
422 p_sys->i_height = val.i_int;
424 var_Get( p_stream, SOUT_CFG_PREFIX "deinterlace", &val );
425 p_sys->b_deinterlace = val.b_bool;
427 var_Get( p_stream, SOUT_CFG_PREFIX "croptop", &val );
428 p_sys->i_crop_top = val.i_int;
429 var_Get( p_stream, SOUT_CFG_PREFIX "cropbottom", &val );
430 p_sys->i_crop_bottom = val.i_int;
431 var_Get( p_stream, SOUT_CFG_PREFIX "cropleft", &val );
432 p_sys->i_crop_left = val.i_int;
433 var_Get( p_stream, SOUT_CFG_PREFIX "cropright", &val );
434 p_sys->i_crop_right = val.i_int;
436 var_Get( p_stream, SOUT_CFG_PREFIX "threads", &val );
437 p_sys->i_threads = val.i_int;
439 if( p_sys->i_vcodec )
441 msg_Dbg( p_stream, "codec video=%4.4s %dx%d scaling: %f %dkb/s",
442 (char *)&p_sys->i_vcodec, p_sys->i_width, p_sys->i_height,
443 p_sys->f_scale, p_sys->i_vbitrate / 1000 );
446 /* Subpictures transcoding parameters */
448 p_sys->psz_senc = NULL;
449 p_sys->p_spu_cfg = NULL;
452 var_Get( p_stream, SOUT_CFG_PREFIX "senc", &val );
453 if( val.psz_string && *val.psz_string )
456 psz_next = sout_CfgCreate( &p_sys->psz_senc, &p_sys->p_spu_cfg,
458 if( psz_next ) free( psz_next );
460 if( val.psz_string ) free( val.psz_string );
462 var_Get( p_stream, SOUT_CFG_PREFIX "scodec", &val );
463 if( val.psz_string && *val.psz_string )
466 memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
467 p_sys->i_scodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
469 if( val.psz_string ) free( val.psz_string );
471 if( p_sys->i_scodec )
473 msg_Dbg( p_stream, "codec spu=%4.4s", (char *)&p_sys->i_acodec );
476 var_Get( p_stream, SOUT_CFG_PREFIX "soverlay", &val );
477 p_sys->b_soverlay = val.b_bool;
479 var_Get( p_stream, SOUT_CFG_PREFIX "sfilter", &val );
480 if( val.psz_string && *val.psz_string )
482 p_sys->p_spu = spu_Create( p_stream );
483 var_Create( p_sys->p_spu, "sub-filter", VLC_VAR_STRING );
484 var_Set( p_sys->p_spu, "sub-filter", val );
485 spu_Init( p_sys->p_spu );
487 if( val.psz_string ) free( val.psz_string );
489 var_Get( p_stream, SOUT_CFG_PREFIX "audio-sync", &val );
490 p_sys->b_master_sync = val.b_bool;
491 if( p_sys->f_fps > 0 ) p_sys->b_master_sync = VLC_TRUE;
493 p_stream->pf_add = Add;
494 p_stream->pf_del = Del;
495 p_stream->pf_send = Send;
496 p_stream->p_sys = p_sys;
501 /*****************************************************************************
503 *****************************************************************************/
504 static void Close( vlc_object_t * p_this )
506 sout_stream_t *p_stream = (sout_stream_t*)p_this;
507 sout_stream_sys_t *p_sys = p_stream->p_sys;
509 sout_StreamDelete( p_sys->p_out );
511 while( p_sys->p_audio_cfg != NULL )
513 sout_cfg_t *p_next = p_sys->p_audio_cfg->p_next;
515 if( p_sys->p_audio_cfg->psz_name )
516 free( p_sys->p_audio_cfg->psz_name );
517 if( p_sys->p_audio_cfg->psz_value )
518 free( p_sys->p_audio_cfg->psz_value );
519 free( p_sys->p_audio_cfg );
521 p_sys->p_audio_cfg = p_next;
523 if( p_sys->psz_aenc ) free( p_sys->psz_aenc );
525 while( p_sys->p_video_cfg != NULL )
527 sout_cfg_t *p_next = p_sys->p_video_cfg->p_next;
529 if( p_sys->p_video_cfg->psz_name )
530 free( p_sys->p_video_cfg->psz_name );
531 if( p_sys->p_video_cfg->psz_value )
532 free( p_sys->p_video_cfg->psz_value );
533 free( p_sys->p_video_cfg );
535 p_sys->p_video_cfg = p_next;
537 if( p_sys->psz_venc ) free( p_sys->psz_venc );
539 while( p_sys->p_spu_cfg != NULL )
541 sout_cfg_t *p_next = p_sys->p_spu_cfg->p_next;
543 if( p_sys->p_spu_cfg->psz_name )
544 free( p_sys->p_spu_cfg->psz_name );
545 if( p_sys->p_spu_cfg->psz_value )
546 free( p_sys->p_spu_cfg->psz_value );
547 free( p_sys->p_spu_cfg );
549 p_sys->p_spu_cfg = p_next;
551 if( p_sys->psz_senc ) free( p_sys->psz_senc );
553 if( p_sys->p_spu ) spu_Destroy( p_sys->p_spu );
555 vlc_object_destroy( p_sys );
558 struct sout_stream_id_t
560 vlc_fourcc_t b_transcode;
562 /* id of the out stream */
566 decoder_t *p_decoder;
569 filter_t *pp_filter[10];
573 encoder_t *p_encoder;
576 date_t interpolated_pts;
580 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
582 sout_stream_sys_t *p_sys = p_stream->p_sys;
583 sout_stream_id_t *id;
585 id = malloc( sizeof( sout_stream_id_t ) );
586 memset( id, 0, sizeof(sout_stream_id_t) );
589 id->p_decoder = NULL;
590 id->p_encoder = NULL;
592 /* Create decoder object */
593 id->p_decoder = vlc_object_create( p_stream, VLC_OBJECT_DECODER );
596 msg_Err( p_stream, "out of memory" );
599 vlc_object_attach( id->p_decoder, p_stream );
600 id->p_decoder->p_module = NULL;
601 id->p_decoder->fmt_in = *p_fmt;
602 id->p_decoder->fmt_out = *p_fmt;
603 id->p_decoder->fmt_out.i_extra = 0;
604 id->p_decoder->fmt_out.p_extra = 0;
605 id->p_decoder->b_pace_control = VLC_TRUE;
607 /* Create encoder object */
608 id->p_encoder = vlc_object_create( p_stream, VLC_OBJECT_ENCODER );
611 msg_Err( p_stream, "out of memory" );
614 vlc_object_attach( id->p_encoder, p_stream );
615 id->p_encoder->p_module = NULL;
617 /* Create destination format */
618 es_format_Init( &id->p_encoder->fmt_out, p_fmt->i_cat, 0 );
619 id->p_encoder->fmt_out.i_id = p_fmt->i_id;
620 id->p_encoder->fmt_out.i_group = p_fmt->i_group;
621 if( p_fmt->psz_language )
622 id->p_encoder->fmt_out.psz_language = strdup( p_fmt->psz_language );
624 if( p_fmt->i_cat == AUDIO_ES && (p_sys->i_acodec || p_sys->psz_aenc) )
627 "creating audio transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
628 (char*)&p_fmt->i_codec, (char*)&p_sys->i_acodec );
630 /* Complete destination format */
631 id->p_encoder->fmt_out.i_codec = p_sys->i_acodec;
632 id->p_encoder->fmt_out.audio.i_rate = p_sys->i_sample_rate > 0 ?
633 p_sys->i_sample_rate : (int)p_fmt->audio.i_rate;
634 id->p_encoder->fmt_out.audio.i_channels = p_sys->i_channels > 0 ?
635 p_sys->i_channels : p_fmt->audio.i_channels;
636 id->p_encoder->fmt_out.i_bitrate = p_sys->i_abitrate;
637 id->p_encoder->fmt_out.audio.i_bitspersample =
638 p_fmt->audio.i_bitspersample;
640 /* Build decoder -> filter -> encoder chain */
641 if( transcode_audio_new( p_stream, id ) )
643 msg_Err( p_stream, "cannot create audio chain" );
647 /* Open output stream */
648 id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
649 id->b_transcode = VLC_TRUE;
651 if( !id->id ) goto error;
653 date_Init( &id->interpolated_pts, p_fmt->audio.i_rate, 1 );
655 else if( p_fmt->i_cat == VIDEO_ES &&
656 (p_sys->i_vcodec != 0 || p_sys->psz_venc) )
659 "creating video transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
660 (char*)&p_fmt->i_codec, (char*)&p_sys->i_vcodec );
662 /* Complete destination format */
663 id->p_encoder->fmt_out.i_codec = p_sys->i_vcodec;
664 id->p_encoder->fmt_out.video.i_width = p_sys->i_width;
665 id->p_encoder->fmt_out.video.i_height = p_sys->i_height;
666 id->p_encoder->fmt_out.i_bitrate = p_sys->i_vbitrate;
668 /* Build decoder -> filter -> encoder chain */
669 if( transcode_video_new( p_stream, id ) )
671 msg_Err( p_stream, "cannot create video chain" );
675 /* Stream will be added later on because we don't know
676 * all the characteristics of the decoded stream yet */
677 id->b_transcode = VLC_TRUE;
679 if( p_sys->f_fps > 0 )
681 id->p_encoder->fmt_out.video.i_frame_rate = p_sys->f_fps * 1000;
682 id->p_encoder->fmt_out.video.i_frame_rate_base = 1000;
685 else if( p_fmt->i_cat == SPU_ES && (p_sys->i_scodec || p_sys->psz_senc) )
687 msg_Dbg( p_stream, "creating subtitles transcoding from fcc=`%4.4s' "
688 "to fcc=`%4.4s'", (char*)&p_fmt->i_codec,
689 (char*)&p_sys->i_scodec );
691 /* Complete destination format */
692 id->p_encoder->fmt_out.i_codec = p_sys->i_scodec;
694 /* build decoder -> filter -> encoder */
695 if( transcode_spu_new( p_stream, id ) )
697 msg_Err( p_stream, "cannot create subtitles chain" );
701 /* open output stream */
702 id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
703 id->b_transcode = VLC_TRUE;
705 if( !id->id ) goto error;
707 else if( p_fmt->i_cat == SPU_ES && p_sys->b_soverlay )
709 msg_Dbg( p_stream, "subtitles (fcc=`%4.4s') overlaying",
710 (char*)&p_fmt->i_codec );
712 id->b_transcode = VLC_TRUE;
714 /* Build decoder -> filter -> overlaying chain */
715 if( transcode_spu_new( p_stream, id ) )
717 msg_Err( p_stream, "cannot create subtitles chain" );
723 msg_Dbg( p_stream, "not transcoding a stream (fcc=`%4.4s')",
724 (char*)&p_fmt->i_codec );
725 id->id = p_sys->p_out->pf_add( p_sys->p_out, p_fmt );
726 id->b_transcode = VLC_FALSE;
728 if( !id->id ) goto error;
736 vlc_object_detach( id->p_decoder );
737 vlc_object_destroy( id->p_decoder );
742 vlc_object_detach( id->p_encoder );
743 vlc_object_destroy( id->p_encoder );
750 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
752 sout_stream_sys_t *p_sys = p_stream->p_sys;
754 if( id->b_transcode )
756 switch( id->p_decoder->fmt_in.i_cat )
759 transcode_audio_close( p_stream, id );
762 transcode_video_close( p_stream, id );
765 transcode_spu_close( p_stream, id );
770 if( id->id ) p_sys->p_out->pf_del( p_sys->p_out, id->id );
774 vlc_object_detach( id->p_decoder );
775 vlc_object_destroy( id->p_decoder );
780 vlc_object_detach( id->p_encoder );
781 vlc_object_destroy( id->p_encoder );
789 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
792 sout_stream_sys_t *p_sys = p_stream->p_sys;
795 if( !id->b_transcode && id->id )
797 if( p_sys->b_master_sync && p_sys->i_master_drift )
799 if( p_buffer->i_dts > 0 )
801 p_buffer->i_dts -= p_sys->i_master_drift;
802 if( p_buffer->i_dts < 0 )
804 block_Release( p_buffer );
808 if( p_buffer->i_pts > 0 )
810 p_buffer->i_pts -= p_sys->i_master_drift;
811 if( p_buffer->i_pts < 0 )
813 block_Release( p_buffer );
819 return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_buffer );
821 else if( !id->b_transcode )
823 block_Release( p_buffer );
827 switch( id->p_decoder->fmt_in.i_cat )
830 transcode_audio_process( p_stream, id, p_buffer, &p_out );
834 if( transcode_video_process( p_stream, id, p_buffer, &p_out )
842 if( transcode_spu_process( p_stream, id, p_buffer, &p_out ) !=
850 block_Release( p_buffer );
854 if( p_out ) return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_out );
858 /****************************************************************************
859 * decoder reencoder part
860 ****************************************************************************/
861 int audio_BitsPerSample( vlc_fourcc_t i_format )
865 case VLC_FOURCC('u','8',' ',' '):
866 case VLC_FOURCC('s','8',' ',' '):
869 case VLC_FOURCC('u','1','6','l'):
870 case VLC_FOURCC('s','1','6','l'):
871 case VLC_FOURCC('u','1','6','b'):
872 case VLC_FOURCC('s','1','6','b'):
875 case VLC_FOURCC('u','2','4','l'):
876 case VLC_FOURCC('s','2','4','l'):
877 case VLC_FOURCC('u','2','4','b'):
878 case VLC_FOURCC('s','2','4','b'):
881 case VLC_FOURCC('u','3','2','l'):
882 case VLC_FOURCC('s','3','2','l'):
883 case VLC_FOURCC('u','3','2','b'):
884 case VLC_FOURCC('s','3','2','b'):
885 case VLC_FOURCC('f','l','3','2'):
886 case VLC_FOURCC('f','i','3','2'):
889 case VLC_FOURCC('f','l','6','4'):
896 static int transcode_audio_new( sout_stream_t *p_stream,
897 sout_stream_id_t *id )
899 sout_stream_sys_t *p_sys = p_stream->p_sys;
905 /* Initialization of decoder structures */
906 id->p_decoder->pf_decode_audio = 0;
907 id->p_decoder->pf_aout_buffer_new = audio_new_buffer;
908 id->p_decoder->pf_aout_buffer_del = audio_del_buffer;
909 //id->p_decoder->p_cfg = p_sys->p_video_cfg;
911 id->p_decoder->p_module =
912 module_Need( id->p_decoder, "decoder", "$codec", 0 );
914 if( !id->p_decoder->p_module )
916 msg_Err( p_stream, "cannot find decoder" );
919 id->p_decoder->fmt_out.audio.i_bitspersample =
920 audio_BitsPerSample( id->p_decoder->fmt_out.i_codec );
926 /* Initialization of encoder format structures */
927 es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
928 id->p_decoder->fmt_out.i_codec );
929 id->p_encoder->fmt_in.audio.i_format = id->p_decoder->fmt_out.i_codec;
931 /* Sanity check for audio channels */
932 id->p_encoder->fmt_out.audio.i_channels =
933 __MIN( id->p_encoder->fmt_out.audio.i_channels,
934 id->p_decoder->fmt_out.audio.i_channels );
935 if( id->p_decoder->fmt_out.audio.i_channels ==
936 id->p_encoder->fmt_out.audio.i_channels )
937 id->p_encoder->fmt_out.audio.i_physical_channels =
938 id->p_encoder->fmt_out.audio.i_original_channels =
939 id->p_decoder->fmt_out.audio.i_physical_channels;
941 id->p_encoder->fmt_out.audio.i_physical_channels =
942 id->p_encoder->fmt_out.audio.i_original_channels =
943 pi_channels_maps[id->p_encoder->fmt_out.audio.i_channels];
945 /* Initialization of encoder format structures */
946 es_format_Init( &id->p_encoder->fmt_in, AUDIO_ES, AOUT_FMT_S16_NE );
947 id->p_encoder->fmt_in.audio.i_format = AOUT_FMT_S16_NE;
948 id->p_encoder->fmt_in.audio.i_rate = id->p_encoder->fmt_out.audio.i_rate;
949 id->p_encoder->fmt_in.audio.i_physical_channels =
950 id->p_encoder->fmt_in.audio.i_original_channels =
951 id->p_encoder->fmt_out.audio.i_physical_channels;
952 id->p_encoder->fmt_in.audio.i_channels =
953 id->p_encoder->fmt_out.audio.i_channels;
954 id->p_encoder->fmt_in.audio.i_bitspersample =
955 audio_BitsPerSample( id->p_encoder->fmt_in.i_codec );
957 id->p_encoder->p_cfg = p_stream->p_sys->p_audio_cfg;
959 id->p_encoder->p_module =
960 module_Need( id->p_encoder, "encoder", p_sys->psz_aenc, VLC_TRUE );
961 if( !id->p_encoder->p_module )
963 msg_Err( p_stream, "cannot find encoder" );
964 module_Unneed( id->p_decoder, id->p_decoder->p_module );
965 id->p_decoder->p_module = 0;
968 id->p_encoder->fmt_in.audio.i_format = id->p_encoder->fmt_in.i_codec;
969 id->p_encoder->fmt_in.audio.i_bitspersample =
970 audio_BitsPerSample( id->p_encoder->fmt_in.i_codec );
972 /* Check if we need a filter for chroma conversion or resizing */
973 if( id->p_decoder->fmt_out.i_codec !=
974 id->p_encoder->fmt_in.i_codec )
977 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
978 vlc_object_attach( id->pp_filter[0], p_stream );
980 id->pp_filter[0]->pf_audio_buffer_new = __block_New;
982 id->pp_filter[0]->fmt_in = id->p_decoder->fmt_out;
983 id->pp_filter[0]->fmt_out = id->p_encoder->fmt_in;
984 id->pp_filter[0]->p_module =
985 module_Need( id->pp_filter[0], "audio filter2", 0, 0 );
986 if( id->pp_filter[0]->p_module ) id->i_filter++;
989 msg_Dbg( p_stream, "no audio filter found (%4.4s->%4.4s)",
990 (char *)&id->pp_filter[0]->fmt_in,
991 (char *)&id->pp_filter[0]->fmt_out );
992 vlc_object_detach( id->pp_filter[0] );
993 vlc_object_destroy( id->pp_filter[0] );
994 module_Unneed( id->p_decoder, id->p_decoder->p_module );
995 id->p_decoder->p_module = 0;
996 module_Unneed( id->p_encoder, id->p_encoder->p_module );
997 id->p_encoder->p_module = 0;
1001 id->pp_filter[0]->fmt_out.audio.i_bitspersample =
1002 audio_BitsPerSample( id->pp_filter[0]->fmt_out.i_codec );
1004 /* Try a 2 stage conversion */
1005 if( id->pp_filter[0]->fmt_out.i_codec !=
1006 id->p_encoder->fmt_in.i_codec )
1009 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1010 vlc_object_attach( id->pp_filter[1], p_stream );
1012 id->pp_filter[1]->pf_audio_buffer_new = __block_New;
1014 id->pp_filter[1]->fmt_in = id->pp_filter[0]->fmt_out;
1015 id->pp_filter[1]->fmt_out = id->p_encoder->fmt_in;
1016 id->pp_filter[1]->p_module =
1017 module_Need( id->pp_filter[1], "audio filter2", 0, 0 );
1018 if( !id->pp_filter[1]->p_module ||
1019 id->pp_filter[1]->fmt_out.i_codec !=
1020 id->p_encoder->fmt_in.i_codec )
1022 msg_Dbg( p_stream, "no audio filter found (%4.4s->%4.4s)",
1023 (char *)&id->pp_filter[1]->fmt_in,
1024 (char *)&id->pp_filter[1]->fmt_out );
1025 module_Unneed( id->pp_filter[0], id->pp_filter[0]->p_module );
1026 vlc_object_detach( id->pp_filter[0] );
1027 vlc_object_destroy( id->pp_filter[0] );
1028 if( id->pp_filter[1]->p_module )
1029 module_Unneed( id->pp_filter[0], id->pp_filter[0]->p_module );
1030 vlc_object_detach( id->pp_filter[1] );
1031 vlc_object_destroy( id->pp_filter[1] );
1032 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1033 id->p_decoder->p_module = 0;
1034 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1035 id->p_encoder->p_module = 0;
1036 return VLC_EGENERIC;
1038 else id->i_filter++;
1042 /* FIXME: Hack for mp3 transcoding support */
1043 if( id->p_encoder->fmt_out.i_codec == VLC_FOURCC( 'm','p','3',' ' ) )
1044 id->p_encoder->fmt_out.i_codec = VLC_FOURCC( 'm','p','g','a' );
1049 static void transcode_audio_close( sout_stream_t *p_stream,
1050 sout_stream_id_t *id )
1055 if( id->p_decoder->p_module )
1056 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1059 if( id->p_encoder->p_module )
1060 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1063 for( i = 0; i < id->i_filter; i++ )
1065 vlc_object_detach( id->pp_filter[i] );
1066 if( id->pp_filter[i]->p_module )
1067 module_Unneed( id->pp_filter[i], id->pp_filter[i]->p_module );
1068 vlc_object_destroy( id->pp_filter[i] );
1072 static int transcode_audio_process( sout_stream_t *p_stream,
1073 sout_stream_id_t *id,
1074 block_t *in, block_t **out )
1076 sout_stream_sys_t *p_sys = p_stream->p_sys;
1077 aout_buffer_t *p_audio_buf;
1078 block_t *p_block, *p_audio_block;
1082 while( (p_audio_buf = id->p_decoder->pf_decode_audio( id->p_decoder,
1085 if( p_sys->b_master_sync )
1087 mtime_t i_dts = date_Get( &id->interpolated_pts ) + 1;
1088 p_sys->i_master_drift = p_audio_buf->start_date - i_dts;
1089 date_Increment( &id->interpolated_pts, p_audio_buf->i_nb_samples );
1090 p_audio_buf->start_date -= p_sys->i_master_drift;
1091 p_audio_buf->end_date -= p_sys->i_master_drift;
1094 p_audio_block = p_audio_buf->p_sys;
1095 p_audio_block->i_buffer = p_audio_buf->i_nb_bytes;
1096 p_audio_block->i_dts = p_audio_block->i_pts =
1097 p_audio_buf->start_date;
1098 p_audio_block->i_length = p_audio_buf->end_date -
1099 p_audio_buf->start_date;
1100 p_audio_block->i_samples = p_audio_buf->i_nb_samples;
1102 /* Run filter chain */
1103 for( i = 0; i < id->i_filter; i++ )
1106 id->pp_filter[i]->pf_audio_filter( id->pp_filter[i],
1110 p_audio_buf->p_buffer = p_audio_block->p_buffer;
1111 p_audio_buf->i_nb_bytes = p_audio_block->i_buffer;
1112 p_audio_buf->i_nb_samples = p_audio_block->i_samples;
1113 p_audio_buf->start_date = p_audio_block->i_dts;
1114 p_audio_buf->end_date = p_audio_block->i_dts + p_audio_block->i_length;
1116 p_block = id->p_encoder->pf_encode_audio( id->p_encoder, p_audio_buf );
1117 block_ChainAppend( out, p_block );
1118 block_Release( p_audio_block );
1119 free( p_audio_buf );
1125 static void audio_release_buffer( aout_buffer_t *p_buffer )
1127 if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1128 if( p_buffer ) free( p_buffer );
1131 static aout_buffer_t *audio_new_buffer( decoder_t *p_dec, int i_samples )
1133 aout_buffer_t *p_buffer;
1137 if( p_dec->fmt_out.audio.i_bitspersample )
1139 i_size = i_samples * p_dec->fmt_out.audio.i_bitspersample / 8 *
1140 p_dec->fmt_out.audio.i_channels;
1142 else if( p_dec->fmt_out.audio.i_bytes_per_frame &&
1143 p_dec->fmt_out.audio.i_frame_length )
1145 i_size = i_samples * p_dec->fmt_out.audio.i_bytes_per_frame /
1146 p_dec->fmt_out.audio.i_frame_length;
1150 i_size = i_samples * 4 * p_dec->fmt_out.audio.i_channels;
1153 p_buffer = malloc( sizeof(aout_buffer_t) );
1154 p_buffer->pf_release = audio_release_buffer;
1155 p_buffer->p_sys = p_block = block_New( p_dec, i_size );
1157 p_buffer->p_buffer = p_block->p_buffer;
1158 p_buffer->i_size = p_buffer->i_nb_bytes = p_block->i_buffer;
1159 p_buffer->i_nb_samples = i_samples;
1160 p_block->i_samples = i_samples;
1165 static void audio_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1167 if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1168 if( p_buffer ) free( p_buffer );
1174 static int transcode_video_new( sout_stream_t *p_stream, sout_stream_id_t *id )
1176 sout_stream_sys_t *p_sys = p_stream->p_sys;
1183 /* Initialization of decoder structures */
1184 id->p_decoder->pf_decode_video = 0;
1185 id->p_decoder->pf_vout_buffer_new = video_new_buffer_decoder;
1186 id->p_decoder->pf_vout_buffer_del = video_del_buffer_decoder;
1187 id->p_decoder->pf_picture_link = video_link_picture_decoder;
1188 id->p_decoder->pf_picture_unlink = video_unlink_picture_decoder;
1189 id->p_decoder->p_owner = malloc( sizeof(decoder_owner_sys_t) );
1190 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1191 id->p_decoder->p_owner->pp_pics[i] = 0;
1192 //id->p_decoder->p_cfg = p_sys->p_video_cfg;
1194 id->p_decoder->p_module =
1195 module_Need( id->p_decoder, "decoder", "$codec", 0 );
1197 if( !id->p_decoder->p_module )
1199 msg_Err( p_stream, "cannot find decoder" );
1200 return VLC_EGENERIC;
1205 * Because some info about the decoded input will only be available
1206 * once the first frame is decoded, we actually only test the availability
1207 * of the encoder here.
1210 /* Initialization of encoder format structures */
1211 es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1212 id->p_decoder->fmt_out.i_codec );
1213 id->p_encoder->fmt_in.video.i_chroma = id->p_decoder->fmt_out.i_codec;
1215 /* The dimensions will be set properly later on.
1216 * Just put sensible values so we can test an encoder is available. */
1217 id->p_encoder->fmt_in.video.i_width =
1218 id->p_encoder->fmt_out.video.i_width ?
1219 id->p_encoder->fmt_out.video.i_width :
1220 id->p_decoder->fmt_in.video.i_width ?
1221 id->p_decoder->fmt_in.video.i_width : 16;
1222 id->p_encoder->fmt_in.video.i_height =
1223 id->p_encoder->fmt_out.video.i_height ?
1224 id->p_encoder->fmt_out.video.i_height :
1225 id->p_decoder->fmt_in.video.i_height ?
1226 id->p_decoder->fmt_in.video.i_height : 16;
1227 id->p_encoder->fmt_in.video.i_frame_rate = 25;
1228 id->p_encoder->fmt_in.video.i_frame_rate_base = 1;
1230 id->p_encoder->i_threads = p_sys->i_threads;
1231 id->p_encoder->p_cfg = p_sys->p_video_cfg;
1233 id->p_encoder->p_module =
1234 module_Need( id->p_encoder, "encoder", p_sys->psz_venc, VLC_TRUE );
1235 if( !id->p_encoder->p_module )
1237 msg_Err( p_stream, "cannot find encoder" );
1238 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1239 id->p_decoder->p_module = 0;
1240 return VLC_EGENERIC;
1243 /* Close the encoder.
1244 * We'll open it only when we have the first frame. */
1245 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1246 id->p_encoder->p_module = NULL;
1248 if( p_sys->i_threads >= 1 )
1250 p_sys->id_video = id;
1251 vlc_mutex_init( p_stream, &p_sys->lock_out );
1252 vlc_cond_init( p_stream, &p_sys->cond );
1253 memset( p_sys->pp_pics, 0, sizeof(p_sys->pp_pics) );
1254 p_sys->i_first_pic = 0;
1255 p_sys->i_last_pic = 0;
1256 p_sys->p_buffers = NULL;
1257 p_sys->b_die = p_sys->b_error = 0;
1258 if( vlc_thread_create( p_sys, "encoder", EncoderThread,
1259 VLC_THREAD_PRIORITY_VIDEO, VLC_FALSE ) )
1261 msg_Err( p_stream, "cannot spawn encoder thread" );
1262 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1263 id->p_decoder->p_module = 0;
1264 return VLC_EGENERIC;
1268 date_Set( &id->interpolated_pts, 0 );
1273 static int transcode_video_encoder_open( sout_stream_t *p_stream,
1274 sout_stream_id_t *id )
1276 sout_stream_sys_t *p_sys = p_stream->p_sys;
1278 /* Hack because of the copy packetizer which can fail to detect the
1279 * proper size (which forces us to wait until the 1st frame
1281 int i_width = id->p_decoder->fmt_out.video.i_width -
1282 p_sys->i_crop_left - p_sys->i_crop_right;
1283 int i_height = id->p_decoder->fmt_out.video.i_height -
1284 p_sys->i_crop_top - p_sys->i_crop_bottom;
1286 if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1287 id->p_encoder->fmt_out.video.i_height <= 0 && p_sys->f_scale )
1289 /* Apply the scaling */
1290 id->p_encoder->fmt_out.video.i_width = i_width * p_sys->f_scale;
1291 id->p_encoder->fmt_out.video.i_height = i_height * p_sys->f_scale;
1293 else if( id->p_encoder->fmt_out.video.i_width > 0 &&
1294 id->p_encoder->fmt_out.video.i_height <= 0 )
1296 id->p_encoder->fmt_out.video.i_height =
1297 id->p_encoder->fmt_out.video.i_width / (double)i_width * i_height;
1299 else if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1300 id->p_encoder->fmt_out.video.i_height > 0 )
1302 id->p_encoder->fmt_out.video.i_width =
1303 id->p_encoder->fmt_out.video.i_height / (double)i_height * i_width;
1306 /* Make sure the size is at least a multiple of 2 */
1307 id->p_encoder->fmt_out.video.i_width =
1308 (id->p_encoder->fmt_out.video.i_width + 1) >> 1 << 1;
1309 id->p_encoder->fmt_out.video.i_height =
1310 (id->p_encoder->fmt_out.video.i_height + 1) >> 1 << 1;
1312 id->p_encoder->fmt_in.video.i_width =
1313 id->p_encoder->fmt_out.video.i_width;
1314 id->p_encoder->fmt_in.video.i_height =
1315 id->p_encoder->fmt_out.video.i_height;
1317 if( !id->p_encoder->fmt_out.video.i_frame_rate ||
1318 !id->p_encoder->fmt_out.video.i_frame_rate_base )
1320 if( id->p_decoder->fmt_out.video.i_frame_rate &&
1321 id->p_decoder->fmt_out.video.i_frame_rate_base )
1323 id->p_encoder->fmt_out.video.i_frame_rate =
1324 id->p_decoder->fmt_out.video.i_frame_rate;
1325 id->p_encoder->fmt_out.video.i_frame_rate_base =
1326 id->p_decoder->fmt_out.video.i_frame_rate_base;
1330 /* Pick a sensible default value */
1331 id->p_encoder->fmt_out.video.i_frame_rate = 25;
1332 id->p_encoder->fmt_out.video.i_frame_rate_base = 1;
1336 id->p_encoder->fmt_in.video.i_frame_rate =
1337 id->p_encoder->fmt_out.video.i_frame_rate;
1338 id->p_encoder->fmt_in.video.i_frame_rate_base =
1339 id->p_encoder->fmt_out.video.i_frame_rate_base;
1341 date_Init( &id->interpolated_pts,
1342 id->p_encoder->fmt_out.video.i_frame_rate,
1343 id->p_encoder->fmt_out.video.i_frame_rate_base );
1345 /* Check whether a particular aspect ratio was requested */
1346 if( !id->p_encoder->fmt_out.video.i_aspect )
1348 id->p_encoder->fmt_out.video.i_aspect =
1349 id->p_decoder->fmt_out.video.i_aspect;
1351 id->p_encoder->fmt_in.video.i_aspect =
1352 id->p_encoder->fmt_out.video.i_aspect;
1354 id->p_encoder->p_module =
1355 module_Need( id->p_encoder, "encoder", p_sys->psz_venc, VLC_TRUE );
1356 if( !id->p_encoder->p_module )
1358 msg_Err( p_stream, "cannot find encoder" );
1359 return VLC_EGENERIC;
1362 id->p_encoder->fmt_in.video.i_chroma = id->p_encoder->fmt_in.i_codec;
1364 /* Hack for mp2v/mp1v transcoding support */
1365 if( id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','1','v') ||
1366 id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','2','v') )
1368 id->p_encoder->fmt_out.i_codec = VLC_FOURCC('m','p','g','v');
1371 id->id = p_stream->p_sys->p_out->pf_add( p_stream->p_sys->p_out,
1372 &id->p_encoder->fmt_out );
1375 msg_Err( p_stream, "cannot add this stream" );
1376 return VLC_EGENERIC;
1382 static void transcode_video_close( sout_stream_t *p_stream,
1383 sout_stream_id_t *id )
1387 if( p_stream->p_sys->i_threads >= 1 )
1389 vlc_mutex_lock( &p_stream->p_sys->lock_out );
1390 p_stream->p_sys->b_die = 1;
1391 vlc_cond_signal( &p_stream->p_sys->cond );
1392 vlc_mutex_unlock( &p_stream->p_sys->lock_out );
1393 vlc_thread_join( p_stream->p_sys );
1394 vlc_mutex_destroy( &p_stream->p_sys->lock_out );
1395 vlc_cond_destroy( &p_stream->p_sys->cond );
1399 if( id->p_decoder->p_module )
1400 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1402 if( id->p_decoder->p_owner )
1404 /* Clean-up pictures ring buffer */
1405 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1407 if( id->p_decoder->p_owner->pp_pics[i] )
1408 video_del_buffer( VLC_OBJECT(id->p_decoder),
1409 id->p_decoder->p_owner->pp_pics[i] );
1411 free( id->p_decoder->p_owner );
1415 if( id->p_encoder->p_module )
1416 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1419 for( i = 0; i < id->i_filter; i++ )
1421 vlc_object_detach( id->pp_filter[i] );
1422 if( id->pp_filter[i]->p_module )
1423 module_Unneed( id->pp_filter[i], id->pp_filter[i]->p_module );
1425 /* Clean-up pictures ring buffer */
1426 for( j = 0; j < PICTURE_RING_SIZE; j++ )
1428 if( id->pp_filter[i]->p_owner->pp_pics[j] )
1429 video_del_buffer( VLC_OBJECT(id->pp_filter[i]),
1430 id->pp_filter[i]->p_owner->pp_pics[j] );
1432 free( id->pp_filter[i]->p_owner );
1434 vlc_object_destroy( id->pp_filter[i] );
1438 static int transcode_video_process( sout_stream_t *p_stream,
1439 sout_stream_id_t *id,
1440 block_t *in, block_t **out )
1442 sout_stream_sys_t *p_sys = p_stream->p_sys;
1443 int i_duplicate = 1, i;
1447 while( (p_pic = id->p_decoder->pf_decode_video( id->p_decoder, &in )) )
1449 subpicture_t *p_subpic = 0;
1451 if( p_sys->b_master_sync )
1453 mtime_t i_video_drift;
1454 mtime_t i_master_drift = p_sys->i_master_drift;
1457 if( !i_master_drift )
1459 /* No audio track ? */
1460 p_sys->i_master_drift = i_master_drift = p_pic->date;
1463 i_pts = date_Get( &id->interpolated_pts ) + 1;
1464 i_video_drift = p_pic->date - i_pts;
1467 /* Set the pts of the frame being encoded */
1468 p_pic->date = i_pts;
1470 if( i_video_drift < i_master_drift - 50000 )
1473 msg_Dbg( p_stream, "dropping frame (%i)",
1474 (int)(i_video_drift - i_master_drift) );
1476 p_pic->pf_release( p_pic );
1477 return VLC_EGENERIC;
1479 else if( i_video_drift > i_master_drift + 50000 )
1482 msg_Dbg( p_stream, "adding frame (%i)",
1483 (int)(i_video_drift - i_master_drift) );
1489 if( !id->p_encoder->p_module )
1491 if( transcode_video_encoder_open( p_stream, id ) != VLC_SUCCESS )
1493 transcode_video_close( p_stream, id );
1494 id->b_transcode = VLC_FALSE;
1495 p_pic->pf_release( p_pic );
1496 return VLC_EGENERIC;
1500 if( p_stream->p_sys->b_deinterlace )
1502 id->pp_filter[id->i_filter] =
1503 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1504 vlc_object_attach( id->pp_filter[id->i_filter], p_stream );
1506 id->pp_filter[id->i_filter]->pf_vout_buffer_new =
1507 video_new_buffer_filter;
1508 id->pp_filter[id->i_filter]->pf_vout_buffer_del =
1509 video_del_buffer_filter;
1511 id->pp_filter[id->i_filter]->fmt_in = id->p_decoder->fmt_out;
1512 id->pp_filter[id->i_filter]->fmt_out = id->p_decoder->fmt_out;
1513 id->pp_filter[id->i_filter]->p_module =
1514 module_Need( id->pp_filter[id->i_filter],
1515 "video filter2", "deinterlace", 0 );
1516 if( id->pp_filter[id->i_filter]->p_module )
1518 id->pp_filter[id->i_filter]->p_owner =
1519 malloc( sizeof(filter_owner_sys_t) );
1520 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1521 id->pp_filter[id->i_filter]->p_owner->pp_pics[i] = 0;
1527 msg_Dbg( p_stream, "no video filter found" );
1528 vlc_object_detach( id->pp_filter[id->i_filter] );
1529 vlc_object_destroy( id->pp_filter[id->i_filter] );
1533 /* Check if we need a filter for chroma conversion or resizing */
1534 if( id->p_decoder->fmt_out.video.i_chroma !=
1535 id->p_encoder->fmt_in.video.i_chroma ||
1536 id->p_decoder->fmt_out.video.i_width !=
1537 id->p_encoder->fmt_out.video.i_width ||
1538 id->p_decoder->fmt_out.video.i_height !=
1539 id->p_encoder->fmt_out.video.i_height ||
1540 p_sys->i_crop_top > 0 || p_sys->i_crop_bottom > 0 ||
1541 p_sys->i_crop_left > 0 || p_sys->i_crop_right > 0 )
1543 id->pp_filter[id->i_filter] =
1544 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1545 vlc_object_attach( id->pp_filter[id->i_filter], p_stream );
1547 id->pp_filter[id->i_filter]->pf_vout_buffer_new =
1548 video_new_buffer_filter;
1549 id->pp_filter[id->i_filter]->pf_vout_buffer_del =
1550 video_del_buffer_filter;
1552 id->pp_filter[id->i_filter]->fmt_in = id->p_decoder->fmt_out;
1553 id->pp_filter[id->i_filter]->fmt_out = id->p_encoder->fmt_in;
1554 id->pp_filter[id->i_filter]->p_module =
1555 module_Need( id->pp_filter[id->i_filter],
1556 "video filter2", 0, 0 );
1557 if( id->pp_filter[id->i_filter]->p_module )
1559 id->pp_filter[id->i_filter]->p_owner =
1560 malloc( sizeof(filter_owner_sys_t) );
1561 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1562 id->pp_filter[id->i_filter]->p_owner->pp_pics[i] = 0;
1568 msg_Dbg( p_stream, "no video filter found" );
1569 vlc_object_detach( id->pp_filter[id->i_filter] );
1570 vlc_object_destroy( id->pp_filter[id->i_filter] );
1572 transcode_video_close( p_stream, id );
1573 id->b_transcode = VLC_FALSE;
1574 p_pic->pf_release( p_pic );
1575 return VLC_EGENERIC;
1580 /* Run filter chain */
1581 for( i = 0; i < id->i_filter; i++ )
1583 p_pic = id->pp_filter[i]->pf_video_filter(id->pp_filter[i], p_pic);
1590 /* Check if we have a subpicture to overlay */
1593 p_subpic = spu_SortSubpictures( p_sys->p_spu, p_pic->date );
1594 /* TODO: get another pic */
1597 /* Overlay subpicture */
1600 int i_scale_width, i_scale_height;
1601 video_format_t *p_fmt;
1603 i_scale_width = id->p_encoder->fmt_in.video.i_width * 1000 /
1604 id->p_decoder->fmt_out.video.i_width;
1605 i_scale_height = id->p_encoder->fmt_in.video.i_height * 1000 /
1606 id->p_decoder->fmt_out.video.i_height;
1608 if( p_pic->i_refcount && !id->i_filter )
1610 /* We can't modify the picture, we need to duplicate it */
1611 picture_t *p_tmp = video_new_buffer_decoder( id->p_decoder );
1614 vout_CopyPicture( p_stream, p_tmp, p_pic );
1615 p_pic->pf_release( p_pic );
1621 p_fmt = &id->pp_filter[id->i_filter -1]->fmt_out.video;
1623 p_fmt = &id->p_decoder->fmt_out.video;
1625 /* FIXME (shouldn't have to be done here) */
1626 p_fmt->i_sar_num = p_fmt->i_aspect *
1627 p_fmt->i_height / p_fmt->i_width;
1628 p_fmt->i_sar_den = VOUT_ASPECT_FACTOR;
1630 spu_RenderSubpictures( p_sys->p_spu, p_fmt, p_pic, p_pic, p_subpic,
1631 i_scale_width, i_scale_height );
1634 if( p_sys->i_threads >= 1 )
1636 vlc_mutex_lock( &p_sys->lock_out );
1637 p_sys->pp_pics[p_sys->i_last_pic++] = p_pic;
1638 p_sys->i_last_pic %= PICTURE_RING_SIZE;
1639 *out = p_sys->p_buffers;
1640 p_sys->p_buffers = NULL;
1641 vlc_cond_signal( &p_sys->cond );
1642 vlc_mutex_unlock( &p_sys->lock_out );
1647 p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
1648 block_ChainAppend( out, p_block );
1650 if( p_sys->b_master_sync )
1651 date_Increment( &id->interpolated_pts, 1 );
1653 if( p_sys->b_master_sync && i_duplicate > 1 )
1655 mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
1656 date_Increment( &id->interpolated_pts, 1 );
1657 p_pic->date = i_pts;
1658 p_block = id->p_encoder->pf_encode_video(id->p_encoder, p_pic);
1659 block_ChainAppend( out, p_block );
1662 p_pic->pf_release( p_pic );
1669 static int EncoderThread( sout_stream_sys_t *p_sys )
1671 sout_stream_id_t *id = p_sys->id_video;
1674 while( !p_sys->b_die && !p_sys->b_error )
1678 vlc_mutex_lock( &p_sys->lock_out );
1679 while( p_sys->i_last_pic == p_sys->i_first_pic )
1681 vlc_cond_wait( &p_sys->cond, &p_sys->lock_out );
1682 if( p_sys->b_die || p_sys->b_error ) break;
1684 if( p_sys->b_die || p_sys->b_error )
1686 vlc_mutex_unlock( &p_sys->lock_out );
1690 p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
1691 p_sys->i_first_pic %= PICTURE_RING_SIZE;
1692 vlc_mutex_unlock( &p_sys->lock_out );
1694 p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
1695 vlc_mutex_lock( &p_sys->lock_out );
1696 block_ChainAppend( &p_sys->p_buffers, p_block );
1698 if( p_sys->b_master_sync )
1699 date_Increment( &id->interpolated_pts, 1 );
1702 if( p_sys->b_master_sync && i_duplicate > 1 )
1704 mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
1705 date_Increment( &id->interpolated_pts, 1 );
1706 p_pic->date = i_pts;
1707 p_block = id->p_encoder->pf_encode_video(id->p_encoder, p_pic);
1708 block_ChainAppend( &p_sys->p_buffers, p_block );
1711 vlc_mutex_unlock( &p_sys->lock_out );
1713 p_pic->pf_release( p_pic );
1716 while( p_sys->i_last_pic != p_sys->i_first_pic )
1718 p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
1719 p_sys->i_first_pic %= PICTURE_RING_SIZE;
1721 p_pic->pf_release( p_pic );
1724 block_ChainRelease( p_sys->p_buffers );
1729 struct picture_sys_t
1731 vlc_object_t *p_owner;
1734 static void video_release_buffer( picture_t *p_pic )
1736 if( p_pic && !p_pic->i_refcount && p_pic->pf_release && p_pic->p_sys )
1738 video_del_buffer_decoder( (decoder_t *)p_pic->p_sys->p_owner, p_pic );
1740 else if( p_pic && p_pic->i_refcount > 0 ) p_pic->i_refcount--;
1743 static picture_t *video_new_buffer( vlc_object_t *p_this, picture_t **pp_ring )
1745 decoder_t *p_dec = (decoder_t *)p_this;
1749 /* Find an empty space in the picture ring buffer */
1750 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1752 if( pp_ring[i] != 0 && pp_ring[i]->i_status == DESTROYED_PICTURE )
1754 pp_ring[i]->i_status = RESERVED_PICTURE;
1758 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1760 if( pp_ring[i] == 0 ) break;
1763 if( i == PICTURE_RING_SIZE )
1765 msg_Err( p_this, "decoder/filter is leaking pictures, "
1766 "resetting its ring buffer" );
1768 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1770 pp_ring[i]->pf_release( pp_ring[i] );
1776 p_pic = malloc( sizeof(picture_t) );
1777 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
1778 vout_AllocatePicture( VLC_OBJECT(p_dec), p_pic,
1779 p_dec->fmt_out.video.i_chroma,
1780 p_dec->fmt_out.video.i_width,
1781 p_dec->fmt_out.video.i_height,
1782 p_dec->fmt_out.video.i_aspect );
1784 if( !p_pic->i_planes )
1790 p_pic->pf_release = video_release_buffer;
1791 p_pic->p_sys = malloc( sizeof(picture_sys_t) );
1792 p_pic->p_sys->p_owner = p_this;
1793 p_pic->i_status = RESERVED_PICTURE;
1800 static picture_t *video_new_buffer_decoder( decoder_t *p_dec )
1802 return video_new_buffer( VLC_OBJECT(p_dec),
1803 p_dec->p_owner->pp_pics );
1806 static picture_t *video_new_buffer_filter( filter_t *p_filter )
1808 return video_new_buffer( VLC_OBJECT(p_filter),
1809 p_filter->p_owner->pp_pics );
1812 static void video_del_buffer( vlc_object_t *p_this, picture_t *p_pic )
1814 if( p_pic && p_pic->p_data_orig ) free( p_pic->p_data_orig );
1815 if( p_pic && p_pic->p_sys ) free( p_pic->p_sys );
1816 if( p_pic ) free( p_pic );
1819 static void video_del_buffer_decoder( decoder_t *p_decoder, picture_t *p_pic )
1821 p_pic->i_refcount = 0;
1822 p_pic->i_status = DESTROYED_PICTURE;
1825 static void video_del_buffer_filter( filter_t *p_filter, picture_t *p_pic )
1827 p_pic->i_refcount = 0;
1828 p_pic->i_status = DESTROYED_PICTURE;
1831 static void video_link_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
1833 p_pic->i_refcount++;
1836 static void video_unlink_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
1838 video_release_buffer( p_pic );
1844 static subpicture_t *spu_new_buffer( decoder_t * );
1845 static void spu_del_buffer( decoder_t *, subpicture_t * );
1847 static int transcode_spu_new( sout_stream_t *p_stream, sout_stream_id_t *id )
1849 sout_stream_sys_t *p_sys = p_stream->p_sys;
1855 /* Initialization of decoder structures */
1856 id->p_decoder->pf_spu_buffer_new = spu_new_buffer;
1857 id->p_decoder->pf_spu_buffer_del = spu_del_buffer;
1858 id->p_decoder->p_owner = (decoder_owner_sys_t *)p_stream;
1859 //id->p_decoder->p_cfg = p_sys->p_spu_cfg;
1861 id->p_decoder->p_module =
1862 module_Need( id->p_decoder, "decoder", "$codec", 0 );
1864 if( !id->p_decoder->p_module )
1866 msg_Err( p_stream, "cannot find decoder" );
1867 return VLC_EGENERIC;
1870 if( !p_sys->b_soverlay )
1876 /* Initialization of encoder format structures */
1877 es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1878 id->p_decoder->fmt_in.i_codec );
1880 id->p_encoder->p_cfg = p_sys->p_spu_cfg;
1882 id->p_encoder->p_module =
1883 module_Need( id->p_encoder, "encoder", p_sys->psz_senc, VLC_TRUE );
1885 if( !id->p_encoder->p_module )
1887 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1888 msg_Err( p_stream, "cannot find encoder" );
1889 return VLC_EGENERIC;
1895 p_sys->p_spu = spu_Create( p_stream );
1896 spu_Init( p_sys->p_spu );
1902 static void transcode_spu_close( sout_stream_t *p_stream, sout_stream_id_t *id)
1905 if( id->p_decoder->p_module )
1906 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1909 if( id->p_encoder->p_module )
1910 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1913 static int transcode_spu_process( sout_stream_t *p_stream,
1914 sout_stream_id_t *id,
1915 block_t *in, block_t **out )
1917 sout_stream_sys_t *p_sys = p_stream->p_sys;
1918 subpicture_t *p_subpic;
1921 p_subpic = id->p_decoder->pf_decode_sub( id->p_decoder, &in );
1922 if( !p_subpic ) return VLC_EGENERIC;
1924 if( p_sys->b_master_sync && p_sys->i_master_drift )
1926 p_subpic->i_start -= p_sys->i_master_drift;
1927 if( p_subpic->i_stop ) p_subpic->i_stop -= p_sys->i_master_drift;
1930 if( p_sys->b_soverlay )
1932 spu_DisplaySubpicture( p_sys->p_spu, p_subpic );
1938 p_block = id->p_encoder->pf_encode_sub( id->p_encoder, p_subpic );
1939 spu_del_buffer( id->p_decoder, p_subpic );
1943 block_ChainAppend( out, p_block );
1948 return VLC_EGENERIC;
1951 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
1953 sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
1954 return spu_CreateSubpicture( p_stream->p_sys->p_spu );
1957 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
1959 sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
1960 spu_DestroySubpicture( p_stream->p_sys->p_spu, p_subpic );