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 *****************************************************************************/
33 #include <vlc/input.h>
36 #include <vlc/decoder.h>
37 #include "vlc_filter.h"
40 /*****************************************************************************
42 *****************************************************************************/
43 #define VENC_TEXT N_("Video encoder")
44 #define VENC_LONGTEXT N_( \
45 "Allows you to specify the video encoder to use and its associated " \
47 #define VCODEC_TEXT N_("Destination video codec")
48 #define VCODEC_LONGTEXT N_( \
49 "Allows you to specify the destination video codec used for the " \
51 #define VB_TEXT N_("Video bitrate")
52 #define VB_LONGTEXT N_( \
53 "Allows you to specify the video bitrate used for the streaming " \
55 #define SCALE_TEXT N_("Video scaling")
56 #define SCALE_LONGTEXT N_( \
57 "Allows you to scale the video before encoding." )
58 #define FPS_TEXT N_("Video frame-rate")
59 #define FPS_LONGTEXT N_( \
60 "Allows you to specify an output frame rate for the video." )
61 #define DEINTERLACE_TEXT N_("Deinterlace video")
62 #define DEINTERLACE_LONGTEXT N_( \
63 "Allows you to deinterlace the video before encoding." )
64 #define DEINTERLACE_MODULE_TEXT N_("Deinterlace module")
65 #define DEINTERLACE_MODULE_LONGTEXT N_( \
66 "Specifies the deinterlace module to use (ffmpeg-deinterlace or " \
68 #define WIDTH_TEXT N_("Video width")
69 #define WIDTH_LONGTEXT N_( \
70 "Allows you to specify the output video width." )
71 #define HEIGHT_TEXT N_("Video height")
72 #define HEIGHT_LONGTEXT N_( \
73 "Allows you to specify the output video height." )
75 #define CROPTOP_TEXT N_("Video crop top")
76 #define CROPTOP_LONGTEXT N_( \
77 "Allows you to specify the top coordinate for the video cropping." )
78 #define CROPLEFT_TEXT N_("Video crop left")
79 #define CROPLEFT_LONGTEXT N_( \
80 "Allows you to specify the left coordinate for the video cropping." )
81 #define CROPBOTTOM_TEXT N_("Video crop bottom")
82 #define CROPBOTTOM_LONGTEXT N_( \
83 "Allows you to specify the bottom coordinate for the video cropping." )
84 #define CROPRIGHT_TEXT N_("Video crop right")
85 #define CROPRIGHT_LONGTEXT N_( \
86 "Allows you to specify the right coordinate for the video cropping." )
88 #define AENC_TEXT N_("Audio encoder")
89 #define AENC_LONGTEXT N_( \
90 "Allows you to specify the audio encoder to use and its associated " \
92 #define ACODEC_TEXT N_("Destination audio codec")
93 #define ACODEC_LONGTEXT N_( \
94 "Allows you to specify the destination audio codec used for the " \
96 #define AB_TEXT N_("Audio bitrate")
97 #define AB_LONGTEXT N_( \
98 "Allows you to specify the audio bitrate used for the streaming " \
100 #define ARATE_TEXT N_("Audio sample rate")
101 #define ARATE_LONGTEXT N_( \
102 "Allows you to specify the audio sample rate used for the streaming " \
104 #define ACHANS_TEXT N_("Audio channels")
105 #define ACHANS_LONGTEXT N_( \
106 "Allows you to specify the number of audio channels used for the " \
107 "streaming output." )
109 #define SENC_TEXT N_("Subtitles encoder")
110 #define SENC_LONGTEXT N_( \
111 "Allows you to specify the subtitles encoder to use and its associated " \
113 #define SCODEC_TEXT N_("Destination subtitles codec")
114 #define SCODEC_LONGTEXT N_( \
115 "Allows you to specify the destination subtitles codec used for the " \
116 "streaming output." )
117 #define SFILTER_TEXT N_("Subpictures filter")
118 #define SFILTER_LONGTEXT N_( \
119 "Allows you to specify subpictures filters used during the video " \
120 "transcoding. The subpictures produced by the filters will be overlayed " \
121 "directly onto the video." )
123 #define THREADS_TEXT N_("Number of threads")
124 #define THREADS_LONGTEXT N_( \
125 "Allows you to specify the number of threads used for the transcoding." )
127 #define ASYNC_TEXT N_("Synchronise on audio track")
128 #define ASYNC_LONGTEXT N_( \
129 "This option will drop/duplicate video frames to synchronise the video " \
130 "track on the audio track." )
132 #define HURRYUP_TEXT N_( "Hurry up" )
133 #define HURRYUP_LONGTEXT N_( "Allows you to specify if the transcoder " \
134 "should drop frames if your CPU can't keep up with the encoding rate." )
136 static int Open ( vlc_object_t * );
137 static void Close( vlc_object_t * );
139 #define SOUT_CFG_PREFIX "sout-transcode-"
142 set_shortname( _("Transcode"));
143 set_description( _("Transcode stream output") );
144 set_capability( "sout stream", 50 );
145 add_shortcut( "transcode" );
146 set_callbacks( Open, Close );
147 set_category( CAT_SOUT );
148 set_subcategory( SUBCAT_SOUT_STREAM );
149 set_section( N_("Video"), NULL );
150 add_string( SOUT_CFG_PREFIX "venc", NULL, NULL, VENC_TEXT,
151 VENC_LONGTEXT, VLC_FALSE );
152 add_string( SOUT_CFG_PREFIX "vcodec", NULL, NULL, VCODEC_TEXT,
153 VCODEC_LONGTEXT, VLC_FALSE );
154 add_integer( SOUT_CFG_PREFIX "vb", 800 * 1000, NULL, VB_TEXT,
155 VB_LONGTEXT, VLC_FALSE );
156 add_float( SOUT_CFG_PREFIX "scale", 1, NULL, SCALE_TEXT,
157 SCALE_LONGTEXT, VLC_FALSE );
158 add_float( SOUT_CFG_PREFIX "fps", 0, NULL, FPS_TEXT,
159 FPS_LONGTEXT, VLC_FALSE );
160 add_bool( SOUT_CFG_PREFIX "hurry-up", VLC_TRUE, NULL, HURRYUP_TEXT,
161 HURRYUP_LONGTEXT, VLC_FALSE );
162 add_bool( SOUT_CFG_PREFIX "deinterlace", 0, NULL, DEINTERLACE_TEXT,
163 DEINTERLACE_LONGTEXT, VLC_FALSE );
164 add_string( SOUT_CFG_PREFIX "deinterlace-module", "deinterlace", NULL,
165 DEINTERLACE_MODULE_TEXT, DEINTERLACE_MODULE_LONGTEXT,
167 add_integer( SOUT_CFG_PREFIX "width", 0, NULL, WIDTH_TEXT,
168 WIDTH_LONGTEXT, VLC_TRUE );
169 add_integer( SOUT_CFG_PREFIX "height", 0, NULL, HEIGHT_TEXT,
170 HEIGHT_LONGTEXT, VLC_TRUE );
172 add_integer( SOUT_CFG_PREFIX "croptop", 0, NULL, CROPTOP_TEXT,
173 CROPTOP_LONGTEXT, VLC_TRUE );
174 add_integer( SOUT_CFG_PREFIX "cropleft", 0, NULL, CROPLEFT_TEXT,
175 CROPLEFT_LONGTEXT, VLC_TRUE );
176 add_integer( SOUT_CFG_PREFIX "cropbottom", 0, NULL, CROPBOTTOM_TEXT,
177 CROPBOTTOM_LONGTEXT, VLC_TRUE );
178 add_integer( SOUT_CFG_PREFIX "cropright", 0, NULL, CROPRIGHT_TEXT,
179 CROPRIGHT_LONGTEXT, VLC_TRUE );
181 set_section( N_("Audio"), NULL );
182 add_string( SOUT_CFG_PREFIX "aenc", NULL, NULL, AENC_TEXT,
183 AENC_LONGTEXT, VLC_FALSE );
184 add_string( SOUT_CFG_PREFIX "acodec", NULL, NULL, ACODEC_TEXT,
185 ACODEC_LONGTEXT, VLC_FALSE );
186 add_integer( SOUT_CFG_PREFIX "ab", 64000, NULL, AB_TEXT,
187 AB_LONGTEXT, VLC_FALSE );
188 add_integer( SOUT_CFG_PREFIX "channels", 0, NULL, ACHANS_TEXT,
189 ACHANS_LONGTEXT, VLC_FALSE );
190 add_integer( SOUT_CFG_PREFIX "samplerate", 0, NULL, ARATE_TEXT,
191 ARATE_LONGTEXT, VLC_TRUE );
192 add_bool( SOUT_CFG_PREFIX "audio-sync", 0, NULL, ASYNC_TEXT,
193 ASYNC_LONGTEXT, VLC_FALSE );
195 set_section( N_("Overlays/Subtitles"), NULL );
196 add_string( SOUT_CFG_PREFIX "senc", NULL, NULL, SENC_TEXT,
197 SENC_LONGTEXT, VLC_FALSE );
198 add_string( SOUT_CFG_PREFIX "scodec", NULL, NULL, SCODEC_TEXT,
199 SCODEC_LONGTEXT, VLC_FALSE );
200 add_bool( SOUT_CFG_PREFIX "soverlay", 0, NULL, SCODEC_TEXT,
201 SCODEC_LONGTEXT, VLC_FALSE );
202 add_module_list_cat( SOUT_CFG_PREFIX "sfilter", SUBCAT_VIDEO_SUBPIC,
204 SFILTER_TEXT, SFILTER_LONGTEXT, VLC_FALSE );
206 set_section( N_("Miscellaneous"), NULL );
207 add_integer( SOUT_CFG_PREFIX "threads", 0, NULL, THREADS_TEXT,
208 THREADS_LONGTEXT, VLC_TRUE );
212 static const char *ppsz_sout_options[] = {
213 "venc", "vcodec", "vb", "croptop", "cropbottom", "cropleft", "cropright",
214 "scale", "fps", "width", "height", "deinterlace", "deinterlace-module",
215 "threads", "hurry-up", "aenc", "acodec", "ab", "samplerate", "channels",
216 "senc", "scodec", "soverlay", "sfilter",
220 /*****************************************************************************
221 * Exported prototypes
222 *****************************************************************************/
223 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
224 static int Del ( sout_stream_t *, sout_stream_id_t * );
225 static int Send( sout_stream_t *, sout_stream_id_t *, block_t* );
227 static int transcode_audio_new ( sout_stream_t *, sout_stream_id_t * );
228 static void transcode_audio_close ( sout_stream_t *, sout_stream_id_t * );
229 static int transcode_audio_process( sout_stream_t *, sout_stream_id_t *,
230 block_t *, block_t ** );
232 static aout_buffer_t *audio_new_buffer( decoder_t *, int );
233 static void audio_del_buffer( decoder_t *, aout_buffer_t * );
235 static int transcode_video_new ( sout_stream_t *, sout_stream_id_t * );
236 static void transcode_video_close ( sout_stream_t *, sout_stream_id_t * );
237 static int transcode_video_encoder_open( sout_stream_t *, sout_stream_id_t *);
238 static int transcode_video_process( sout_stream_t *, sout_stream_id_t *,
239 block_t *, block_t ** );
241 static void video_del_buffer( vlc_object_t *, picture_t * );
242 static picture_t *video_new_buffer_decoder( decoder_t * );
243 static void video_del_buffer_decoder( decoder_t *, picture_t * );
244 static void video_link_picture_decoder( decoder_t *, picture_t * );
245 static void video_unlink_picture_decoder( decoder_t *, picture_t * );
246 static picture_t *video_new_buffer_filter( filter_t * );
247 static void video_del_buffer_filter( filter_t *, picture_t * );
249 static int transcode_spu_new ( sout_stream_t *, sout_stream_id_t * );
250 static void transcode_spu_close ( sout_stream_t *, sout_stream_id_t * );
251 static int transcode_spu_process( sout_stream_t *, sout_stream_id_t *,
252 block_t *, block_t ** );
254 static int EncoderThread( struct sout_stream_sys_t * p_sys );
256 static int pi_channels_maps[6] =
259 AOUT_CHAN_CENTER, AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
260 AOUT_CHAN_CENTER | AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
261 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_REARLEFT
262 | AOUT_CHAN_REARRIGHT,
263 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
264 | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
267 #define PICTURE_RING_SIZE 64
268 #define SUBPICTURE_RING_SIZE 20
270 struct sout_stream_sys_t
274 sout_stream_t *p_out;
275 sout_stream_id_t *id_video;
277 vlc_mutex_t lock_out;
279 picture_t * pp_pics[PICTURE_RING_SIZE];
280 int i_first_pic, i_last_pic;
283 vlc_fourcc_t i_acodec; /* codec audio (0 if not transcode) */
285 sout_cfg_t *p_audio_cfg;
291 vlc_fourcc_t i_vcodec; /* codec video (0 if not transcode) */
293 sout_cfg_t *p_video_cfg;
299 vlc_bool_t b_deinterlace;
300 char *psz_deinterlace;
301 sout_cfg_t *p_deinterlace_cfg;
303 vlc_bool_t b_hurry_up;
311 vlc_fourcc_t i_scodec; /* codec spu (0 if not transcode) */
313 vlc_bool_t b_soverlay;
314 sout_cfg_t *p_spu_cfg;
318 vlc_bool_t b_master_sync;
319 mtime_t i_master_drift;
322 struct decoder_owner_sys_t
324 picture_t *pp_pics[PICTURE_RING_SIZE];
326 struct filter_owner_sys_t
328 picture_t *pp_pics[PICTURE_RING_SIZE];
331 /*****************************************************************************
333 *****************************************************************************/
334 static int Open( vlc_object_t *p_this )
336 sout_stream_t *p_stream = (sout_stream_t*)p_this;
337 sout_stream_sys_t *p_sys;
340 p_sys = vlc_object_create( p_this, sizeof( sout_stream_sys_t ) );
342 p_sys->p_out = sout_StreamNew( p_stream->p_sout, p_stream->psz_next );
345 msg_Err( p_stream, "cannot create chain" );
346 vlc_object_destroy( p_sys );
350 p_sys->i_master_drift = 0;
352 sout_CfgParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
355 /* Audio transcoding parameters */
356 var_Get( p_stream, SOUT_CFG_PREFIX "aenc", &val );
357 p_sys->psz_aenc = NULL;
358 p_sys->p_audio_cfg = NULL;
359 if( val.psz_string && *val.psz_string )
362 psz_next = sout_CfgCreate( &p_sys->psz_aenc, &p_sys->p_audio_cfg,
364 if( psz_next ) free( psz_next );
366 if( val.psz_string ) free( val.psz_string );
368 var_Get( p_stream, SOUT_CFG_PREFIX "acodec", &val );
370 if( val.psz_string && *val.psz_string )
373 memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
374 p_sys->i_acodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
376 if( val.psz_string ) free( val.psz_string );
378 var_Get( p_stream, SOUT_CFG_PREFIX "ab", &val );
379 p_sys->i_abitrate = val.i_int;
380 if( p_sys->i_abitrate < 4000 ) p_sys->i_abitrate *= 1000;
382 var_Get( p_stream, SOUT_CFG_PREFIX "samplerate", &val );
383 p_sys->i_sample_rate = val.i_int;
385 var_Get( p_stream, SOUT_CFG_PREFIX "channels", &val );
386 p_sys->i_channels = val.i_int;
388 if( p_sys->i_acodec )
390 msg_Dbg( p_stream, "codec audio=%4.4s %dHz %d channels %dKb/s",
391 (char *)&p_sys->i_acodec, p_sys->i_sample_rate,
392 p_sys->i_channels, p_sys->i_abitrate / 1000 );
395 /* Video transcoding parameters */
396 var_Get( p_stream, SOUT_CFG_PREFIX "venc", &val );
397 p_sys->psz_venc = NULL;
398 p_sys->p_video_cfg = NULL;
399 if( val.psz_string && *val.psz_string )
402 psz_next = sout_CfgCreate( &p_sys->psz_venc, &p_sys->p_video_cfg,
404 if( psz_next ) free( psz_next );
406 if( val.psz_string ) free( val.psz_string );
408 var_Get( p_stream, SOUT_CFG_PREFIX "vcodec", &val );
410 if( val.psz_string && *val.psz_string )
413 memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
414 p_sys->i_vcodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
416 if( val.psz_string ) free( val.psz_string );
418 var_Get( p_stream, SOUT_CFG_PREFIX "vb", &val );
419 p_sys->i_vbitrate = val.i_int;
420 if( p_sys->i_vbitrate < 16000 ) p_sys->i_vbitrate *= 1000;
422 var_Get( p_stream, SOUT_CFG_PREFIX "scale", &val );
423 p_sys->f_scale = val.f_float;
425 var_Get( p_stream, SOUT_CFG_PREFIX "fps", &val );
426 p_sys->f_fps = val.f_float;
428 var_Get( p_stream, SOUT_CFG_PREFIX "hurry-up", &val );
429 p_sys->b_hurry_up = val.b_bool;
431 var_Get( p_stream, SOUT_CFG_PREFIX "width", &val );
432 p_sys->i_width = val.i_int;
434 var_Get( p_stream, SOUT_CFG_PREFIX "height", &val );
435 p_sys->i_height = val.i_int;
437 var_Get( p_stream, SOUT_CFG_PREFIX "deinterlace", &val );
438 p_sys->b_deinterlace = val.b_bool;
440 var_Get( p_stream, SOUT_CFG_PREFIX "deinterlace-module", &val );
441 p_sys->psz_deinterlace = NULL;
442 p_sys->p_deinterlace_cfg = NULL;
443 if( val.psz_string && *val.psz_string )
446 psz_next = sout_CfgCreate( &p_sys->psz_deinterlace,
447 &p_sys->p_deinterlace_cfg,
449 if( psz_next ) free( psz_next );
451 if( val.psz_string ) free( val.psz_string );
453 var_Get( p_stream, SOUT_CFG_PREFIX "croptop", &val );
454 p_sys->i_crop_top = val.i_int;
455 var_Get( p_stream, SOUT_CFG_PREFIX "cropbottom", &val );
456 p_sys->i_crop_bottom = val.i_int;
457 var_Get( p_stream, SOUT_CFG_PREFIX "cropleft", &val );
458 p_sys->i_crop_left = val.i_int;
459 var_Get( p_stream, SOUT_CFG_PREFIX "cropright", &val );
460 p_sys->i_crop_right = val.i_int;
462 var_Get( p_stream, SOUT_CFG_PREFIX "threads", &val );
463 p_sys->i_threads = val.i_int;
465 if( p_sys->i_vcodec )
467 msg_Dbg( p_stream, "codec video=%4.4s %dx%d scaling: %f %dkb/s",
468 (char *)&p_sys->i_vcodec, p_sys->i_width, p_sys->i_height,
469 p_sys->f_scale, p_sys->i_vbitrate / 1000 );
472 /* Subpictures transcoding parameters */
474 p_sys->psz_senc = NULL;
475 p_sys->p_spu_cfg = NULL;
478 var_Get( p_stream, SOUT_CFG_PREFIX "senc", &val );
479 if( val.psz_string && *val.psz_string )
482 psz_next = sout_CfgCreate( &p_sys->psz_senc, &p_sys->p_spu_cfg,
484 if( psz_next ) free( psz_next );
486 if( val.psz_string ) free( val.psz_string );
488 var_Get( p_stream, SOUT_CFG_PREFIX "scodec", &val );
489 if( val.psz_string && *val.psz_string )
492 memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
493 p_sys->i_scodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
495 if( val.psz_string ) free( val.psz_string );
497 if( p_sys->i_scodec )
499 msg_Dbg( p_stream, "codec spu=%4.4s", (char *)&p_sys->i_scodec );
502 var_Get( p_stream, SOUT_CFG_PREFIX "soverlay", &val );
503 p_sys->b_soverlay = val.b_bool;
505 var_Get( p_stream, SOUT_CFG_PREFIX "sfilter", &val );
506 if( val.psz_string && *val.psz_string )
508 p_sys->p_spu = spu_Create( p_stream );
509 var_Create( p_sys->p_spu, "sub-filter", VLC_VAR_STRING );
510 var_Set( p_sys->p_spu, "sub-filter", val );
511 spu_Init( p_sys->p_spu );
513 if( val.psz_string ) free( val.psz_string );
515 var_Get( p_stream, SOUT_CFG_PREFIX "audio-sync", &val );
516 p_sys->b_master_sync = val.b_bool;
517 if( p_sys->f_fps > 0 ) p_sys->b_master_sync = VLC_TRUE;
519 p_stream->pf_add = Add;
520 p_stream->pf_del = Del;
521 p_stream->pf_send = Send;
522 p_stream->p_sys = p_sys;
527 /*****************************************************************************
529 *****************************************************************************/
530 static void Close( vlc_object_t * p_this )
532 sout_stream_t *p_stream = (sout_stream_t*)p_this;
533 sout_stream_sys_t *p_sys = p_stream->p_sys;
535 sout_StreamDelete( p_sys->p_out );
537 while( p_sys->p_audio_cfg != NULL )
539 sout_cfg_t *p_next = p_sys->p_audio_cfg->p_next;
541 if( p_sys->p_audio_cfg->psz_name )
542 free( p_sys->p_audio_cfg->psz_name );
543 if( p_sys->p_audio_cfg->psz_value )
544 free( p_sys->p_audio_cfg->psz_value );
545 free( p_sys->p_audio_cfg );
547 p_sys->p_audio_cfg = p_next;
549 if( p_sys->psz_aenc ) free( p_sys->psz_aenc );
551 while( p_sys->p_video_cfg != NULL )
553 sout_cfg_t *p_next = p_sys->p_video_cfg->p_next;
555 if( p_sys->p_video_cfg->psz_name )
556 free( p_sys->p_video_cfg->psz_name );
557 if( p_sys->p_video_cfg->psz_value )
558 free( p_sys->p_video_cfg->psz_value );
559 free( p_sys->p_video_cfg );
561 p_sys->p_video_cfg = p_next;
563 if( p_sys->psz_venc ) free( p_sys->psz_venc );
565 while( p_sys->p_deinterlace_cfg != NULL )
567 sout_cfg_t *p_next = p_sys->p_deinterlace_cfg->p_next;
569 if( p_sys->p_deinterlace_cfg->psz_name )
570 free( p_sys->p_deinterlace_cfg->psz_name );
571 if( p_sys->p_deinterlace_cfg->psz_value )
572 free( p_sys->p_deinterlace_cfg->psz_value );
573 free( p_sys->p_deinterlace_cfg );
575 p_sys->p_deinterlace_cfg = p_next;
577 if( p_sys->psz_deinterlace ) free( p_sys->psz_deinterlace );
579 while( p_sys->p_spu_cfg != NULL )
581 sout_cfg_t *p_next = p_sys->p_spu_cfg->p_next;
583 if( p_sys->p_spu_cfg->psz_name )
584 free( p_sys->p_spu_cfg->psz_name );
585 if( p_sys->p_spu_cfg->psz_value )
586 free( p_sys->p_spu_cfg->psz_value );
587 free( p_sys->p_spu_cfg );
589 p_sys->p_spu_cfg = p_next;
591 if( p_sys->psz_senc ) free( p_sys->psz_senc );
593 if( p_sys->p_spu ) spu_Destroy( p_sys->p_spu );
595 vlc_object_destroy( p_sys );
598 struct sout_stream_id_t
600 vlc_fourcc_t b_transcode;
602 /* id of the out stream */
606 decoder_t *p_decoder;
609 filter_t *pp_filter[10];
613 encoder_t *p_encoder;
616 date_t interpolated_pts;
620 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
622 sout_stream_sys_t *p_sys = p_stream->p_sys;
623 sout_stream_id_t *id;
625 id = malloc( sizeof( sout_stream_id_t ) );
626 memset( id, 0, sizeof(sout_stream_id_t) );
629 id->p_decoder = NULL;
630 id->p_encoder = NULL;
632 /* Create decoder object */
633 id->p_decoder = vlc_object_create( p_stream, VLC_OBJECT_DECODER );
636 msg_Err( p_stream, "out of memory" );
639 vlc_object_attach( id->p_decoder, p_stream );
640 id->p_decoder->p_module = NULL;
641 id->p_decoder->fmt_in = *p_fmt;
642 id->p_decoder->b_pace_control = VLC_TRUE;
644 /* Create encoder object */
645 id->p_encoder = vlc_object_create( p_stream, VLC_OBJECT_ENCODER );
648 msg_Err( p_stream, "out of memory" );
651 vlc_object_attach( id->p_encoder, p_stream );
652 id->p_encoder->p_module = NULL;
654 /* Create destination format */
655 es_format_Init( &id->p_encoder->fmt_out, p_fmt->i_cat, 0 );
656 id->p_encoder->fmt_out.i_id = p_fmt->i_id;
657 id->p_encoder->fmt_out.i_group = p_fmt->i_group;
658 if( p_fmt->psz_language )
659 id->p_encoder->fmt_out.psz_language = strdup( p_fmt->psz_language );
661 if( p_fmt->i_cat == AUDIO_ES && (p_sys->i_acodec || p_sys->psz_aenc) )
664 "creating audio transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
665 (char*)&p_fmt->i_codec, (char*)&p_sys->i_acodec );
667 /* Complete destination format */
668 id->p_encoder->fmt_out.i_codec = p_sys->i_acodec;
669 id->p_encoder->fmt_out.audio.i_rate = p_sys->i_sample_rate > 0 ?
670 p_sys->i_sample_rate : (int)p_fmt->audio.i_rate;
671 id->p_encoder->fmt_out.i_bitrate = p_sys->i_abitrate;
672 id->p_encoder->fmt_out.audio.i_bitspersample =
673 p_fmt->audio.i_bitspersample;
674 id->p_encoder->fmt_out.audio.i_channels = p_sys->i_channels > 0 ?
675 p_sys->i_channels : p_fmt->audio.i_channels;
676 /* Sanity check for audio channels */
677 id->p_encoder->fmt_out.audio.i_channels =
678 __MIN( id->p_encoder->fmt_out.audio.i_channels,
679 id->p_decoder->fmt_in.audio.i_channels );
680 id->p_encoder->fmt_out.audio.i_original_channels =
681 id->p_decoder->fmt_in.audio.i_physical_channels;
682 if( id->p_decoder->fmt_in.audio.i_channels ==
683 id->p_encoder->fmt_out.audio.i_channels )
685 id->p_encoder->fmt_out.audio.i_physical_channels =
686 id->p_decoder->fmt_in.audio.i_physical_channels;
690 id->p_encoder->fmt_out.audio.i_physical_channels =
691 pi_channels_maps[id->p_encoder->fmt_out.audio.i_channels];
694 /* Build decoder -> filter -> encoder chain */
695 if( transcode_audio_new( p_stream, id ) )
697 msg_Err( p_stream, "cannot create audio 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 date_Init( &id->interpolated_pts, p_fmt->audio.i_rate, 1 );
709 else if( p_fmt->i_cat == VIDEO_ES &&
710 (p_sys->i_vcodec != 0 || p_sys->psz_venc) )
713 "creating video transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
714 (char*)&p_fmt->i_codec, (char*)&p_sys->i_vcodec );
716 /* Complete destination format */
717 id->p_encoder->fmt_out.i_codec = p_sys->i_vcodec;
718 id->p_encoder->fmt_out.video.i_width = p_sys->i_width;
719 id->p_encoder->fmt_out.video.i_height = p_sys->i_height;
720 id->p_encoder->fmt_out.i_bitrate = p_sys->i_vbitrate;
722 /* Build decoder -> filter -> encoder chain */
723 if( transcode_video_new( p_stream, id ) )
725 msg_Err( p_stream, "cannot create video chain" );
729 /* Stream will be added later on because we don't know
730 * all the characteristics of the decoded stream yet */
731 id->b_transcode = VLC_TRUE;
733 if( p_sys->f_fps > 0 )
735 id->p_encoder->fmt_out.video.i_frame_rate =
736 (p_sys->f_fps * 1001) + 0.5;
737 id->p_encoder->fmt_out.video.i_frame_rate_base = 1001;
740 else if( p_fmt->i_cat == SPU_ES && (p_sys->i_scodec || p_sys->psz_senc) )
742 msg_Dbg( p_stream, "creating subtitles transcoding from fcc=`%4.4s' "
743 "to fcc=`%4.4s'", (char*)&p_fmt->i_codec,
744 (char*)&p_sys->i_scodec );
746 /* Complete destination format */
747 id->p_encoder->fmt_out.i_codec = p_sys->i_scodec;
749 /* build decoder -> filter -> encoder */
750 if( transcode_spu_new( p_stream, id ) )
752 msg_Err( p_stream, "cannot create subtitles chain" );
756 /* open output stream */
757 id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
758 id->b_transcode = VLC_TRUE;
760 if( !id->id ) goto error;
762 else if( p_fmt->i_cat == SPU_ES && p_sys->b_soverlay )
764 msg_Dbg( p_stream, "subtitles (fcc=`%4.4s') overlaying",
765 (char*)&p_fmt->i_codec );
767 id->b_transcode = VLC_TRUE;
769 /* Build decoder -> filter -> overlaying chain */
770 if( transcode_spu_new( p_stream, id ) )
772 msg_Err( p_stream, "cannot create subtitles chain" );
778 msg_Dbg( p_stream, "not transcoding a stream (fcc=`%4.4s')",
779 (char*)&p_fmt->i_codec );
780 id->id = p_sys->p_out->pf_add( p_sys->p_out, p_fmt );
781 id->b_transcode = VLC_FALSE;
783 if( !id->id ) goto error;
791 vlc_object_detach( id->p_decoder );
792 vlc_object_destroy( id->p_decoder );
797 vlc_object_detach( id->p_encoder );
798 vlc_object_destroy( id->p_encoder );
805 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
807 sout_stream_sys_t *p_sys = p_stream->p_sys;
809 if( id->b_transcode )
811 switch( id->p_decoder->fmt_in.i_cat )
814 transcode_audio_close( p_stream, id );
817 transcode_video_close( p_stream, id );
820 transcode_spu_close( p_stream, id );
825 if( id->id ) p_sys->p_out->pf_del( p_sys->p_out, id->id );
829 vlc_object_detach( id->p_decoder );
830 vlc_object_destroy( id->p_decoder );
835 vlc_object_detach( id->p_encoder );
836 vlc_object_destroy( id->p_encoder );
844 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
847 sout_stream_sys_t *p_sys = p_stream->p_sys;
850 if( !id->b_transcode && id->id )
852 if( p_sys->b_master_sync && p_sys->i_master_drift )
854 if( p_buffer->i_dts > 0 )
856 p_buffer->i_dts -= p_sys->i_master_drift;
857 if( p_buffer->i_dts < 0 )
859 block_Release( p_buffer );
863 if( p_buffer->i_pts > 0 )
865 p_buffer->i_pts -= p_sys->i_master_drift;
866 if( p_buffer->i_pts < 0 )
868 block_Release( p_buffer );
874 return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_buffer );
876 else if( !id->b_transcode )
878 block_Release( p_buffer );
882 switch( id->p_decoder->fmt_in.i_cat )
885 transcode_audio_process( p_stream, id, p_buffer, &p_out );
889 if( transcode_video_process( p_stream, id, p_buffer, &p_out )
897 if( transcode_spu_process( p_stream, id, p_buffer, &p_out ) !=
905 block_Release( p_buffer );
909 if( p_out ) return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_out );
913 /****************************************************************************
914 * decoder reencoder part
915 ****************************************************************************/
916 int audio_BitsPerSample( vlc_fourcc_t i_format )
920 case VLC_FOURCC('u','8',' ',' '):
921 case VLC_FOURCC('s','8',' ',' '):
924 case VLC_FOURCC('u','1','6','l'):
925 case VLC_FOURCC('s','1','6','l'):
926 case VLC_FOURCC('u','1','6','b'):
927 case VLC_FOURCC('s','1','6','b'):
930 case VLC_FOURCC('u','2','4','l'):
931 case VLC_FOURCC('s','2','4','l'):
932 case VLC_FOURCC('u','2','4','b'):
933 case VLC_FOURCC('s','2','4','b'):
936 case VLC_FOURCC('u','3','2','l'):
937 case VLC_FOURCC('s','3','2','l'):
938 case VLC_FOURCC('u','3','2','b'):
939 case VLC_FOURCC('s','3','2','b'):
940 case VLC_FOURCC('f','l','3','2'):
941 case VLC_FOURCC('f','i','3','2'):
944 case VLC_FOURCC('f','l','6','4'):
951 static filter_t *transcode_audio_filter_new( sout_stream_t *p_stream,
952 sout_stream_id_t *id,
953 es_format_t *p_fmt_in,
954 es_format_t *p_fmt_out )
956 filter_t *p_filter = vlc_object_create( p_stream, VLC_OBJECT_FILTER );
958 vlc_object_attach( p_filter, p_stream );
959 p_filter->pf_audio_buffer_new = __block_New;
961 p_filter->fmt_in = *p_fmt_in;
962 p_filter->fmt_out = *p_fmt_out;
964 p_filter->p_module = module_Need( p_filter, "audio filter2", 0, 0 );
965 if( p_filter->p_module )
967 p_filter->fmt_out.audio.i_bitspersample =
968 audio_BitsPerSample( p_filter->fmt_out.i_codec );
969 *p_fmt_in = p_filter->fmt_out;
973 vlc_object_detach( p_filter );
974 vlc_object_destroy( p_filter );
981 static int transcode_audio_new( sout_stream_t *p_stream,
982 sout_stream_id_t *id )
984 sout_stream_sys_t *p_sys = p_stream->p_sys;
985 es_format_t fmt_last;
992 /* Initialization of decoder structures */
993 id->p_decoder->fmt_out = id->p_decoder->fmt_in;
994 id->p_decoder->fmt_out.i_extra = 0;
995 id->p_decoder->fmt_out.p_extra = 0;
996 id->p_decoder->pf_decode_audio = 0;
997 id->p_decoder->pf_aout_buffer_new = audio_new_buffer;
998 id->p_decoder->pf_aout_buffer_del = audio_del_buffer;
999 //id->p_decoder->p_cfg = p_sys->p_video_cfg;
1001 id->p_decoder->p_module =
1002 module_Need( id->p_decoder, "decoder", "$codec", 0 );
1004 if( !id->p_decoder->p_module )
1006 msg_Err( p_stream, "cannot find decoder" );
1007 return VLC_EGENERIC;
1009 id->p_decoder->fmt_out.audio.i_bitspersample =
1010 audio_BitsPerSample( id->p_decoder->fmt_out.i_codec );
1011 fmt_last = id->p_decoder->fmt_out;
1012 /* FIX decoders so we don't have to do this */
1013 fmt_last.audio.i_rate = id->p_decoder->fmt_in.audio.i_rate;
1019 /* Initialization of encoder format structures */
1020 es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1021 id->p_decoder->fmt_out.i_codec );
1022 id->p_encoder->fmt_in.audio.i_format = id->p_decoder->fmt_out.i_codec;
1024 /* Initialization of encoder format structures */
1025 es_format_Init( &id->p_encoder->fmt_in, AUDIO_ES, AOUT_FMT_S16_NE );
1026 id->p_encoder->fmt_in.audio.i_format = AOUT_FMT_S16_NE;
1027 id->p_encoder->fmt_in.audio.i_rate = id->p_encoder->fmt_out.audio.i_rate;
1028 id->p_encoder->fmt_in.audio.i_physical_channels =
1029 id->p_encoder->fmt_out.audio.i_physical_channels;
1030 id->p_encoder->fmt_in.audio.i_original_channels =
1031 id->p_encoder->fmt_out.audio.i_original_channels;
1032 id->p_encoder->fmt_in.audio.i_channels =
1033 id->p_encoder->fmt_out.audio.i_channels;
1034 id->p_encoder->fmt_in.audio.i_bitspersample =
1035 audio_BitsPerSample( id->p_encoder->fmt_in.i_codec );
1037 id->p_encoder->p_cfg = p_stream->p_sys->p_audio_cfg;
1039 id->p_encoder->p_module =
1040 module_Need( id->p_encoder, "encoder", p_sys->psz_aenc, VLC_TRUE );
1041 if( !id->p_encoder->p_module )
1043 msg_Err( p_stream, "cannot find encoder" );
1044 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1045 id->p_decoder->p_module = 0;
1046 return VLC_EGENERIC;
1048 id->p_encoder->fmt_in.audio.i_format = id->p_encoder->fmt_in.i_codec;
1049 id->p_encoder->fmt_in.audio.i_bitspersample =
1050 audio_BitsPerSample( id->p_encoder->fmt_in.i_codec );
1052 /* Load conversion filters */
1053 if( fmt_last.audio.i_channels != id->p_encoder->fmt_in.audio.i_channels ||
1054 fmt_last.audio.i_rate != id->p_encoder->fmt_in.audio.i_rate )
1056 /* We'll have to go through fl32 first */
1057 es_format_t fmt_out = id->p_encoder->fmt_in;
1058 fmt_out.i_codec = fmt_out.audio.i_format = VLC_FOURCC('f','l','3','2');
1060 id->pp_filter[id->i_filter] =
1061 transcode_audio_filter_new( p_stream, id, &fmt_last, &fmt_out );
1063 if( id->pp_filter[id->i_filter] ) id->i_filter++;
1068 if( fmt_last.audio.i_channels !=
1069 id->p_encoder->fmt_in.audio.i_channels ||
1070 fmt_last.audio.i_rate != id->p_encoder->fmt_in.audio.i_rate ||
1071 fmt_last.i_codec != id->p_encoder->fmt_in.i_codec )
1073 id->pp_filter[id->i_filter] =
1074 transcode_audio_filter_new( p_stream, id, &fmt_last,
1075 &id->p_encoder->fmt_in );
1077 if( id->pp_filter[id->i_filter] ) id->i_filter++;
1082 /* Final checks to see if conversions were successful */
1083 if( fmt_last.i_codec != id->p_encoder->fmt_in.i_codec )
1085 msg_Err( p_stream, "no audio filter found (%4.4s->%4.4s)",
1086 (char *)&fmt_last.i_codec,
1087 (char *)&id->p_encoder->fmt_in.i_codec );
1088 transcode_audio_close( p_stream, id );
1089 return VLC_EGENERIC;
1092 if( fmt_last.audio.i_channels != id->p_encoder->fmt_in.audio.i_channels )
1094 msg_Err( p_stream, "no audio filter found for mixing from"
1095 " %i to %i channels", fmt_last.audio.i_channels,
1096 id->p_encoder->fmt_in.audio.i_channels );
1098 /* FIXME : this might work, but only if the encoder is restarted */
1099 id->p_encoder->fmt_in.audio.i_channels = fmt_last.audio.i_channels;
1100 id->p_encoder->fmt_out.audio.i_channels = fmt_last.audio.i_channels;
1102 id->p_encoder->fmt_in.audio.i_physical_channels =
1103 id->p_encoder->fmt_in.audio.i_original_channels =
1104 fmt_last.audio.i_physical_channels;
1105 id->p_encoder->fmt_out.audio.i_physical_channels =
1106 id->p_encoder->fmt_out.audio.i_original_channels =
1107 fmt_last.audio.i_physical_channels;
1109 transcode_audio_close( p_stream, id );
1110 return VLC_EGENERIC;
1114 if( fmt_last.audio.i_rate != id->p_encoder->fmt_in.audio.i_rate )
1116 msg_Err( p_stream, "no audio filter found for resampling from"
1117 " %iHz to %iHz", fmt_last.audio.i_rate,
1118 id->p_encoder->fmt_in.audio.i_rate );
1120 /* FIXME : this might work, but only if the encoder is restarted */
1121 id->p_encoder->fmt_in.audio.i_rate = fmt_last.audio.i_rate;
1122 id->p_encoder->fmt_out.audio.i_rate = fmt_last.audio.i_rate;
1124 transcode_audio_close( p_stream, id );
1125 return VLC_EGENERIC;
1129 /* FIXME: Hack for mp3 transcoding support */
1130 if( id->p_encoder->fmt_out.i_codec == VLC_FOURCC( 'm','p','3',' ' ) )
1131 id->p_encoder->fmt_out.i_codec = VLC_FOURCC( 'm','p','g','a' );
1136 static void transcode_audio_close( sout_stream_t *p_stream,
1137 sout_stream_id_t *id )
1142 if( id->p_decoder->p_module )
1143 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1144 id->p_decoder->p_module = 0;
1147 if( id->p_encoder->p_module )
1148 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1149 id->p_encoder->p_module = 0;
1152 for( i = 0; i < id->i_filter; i++ )
1154 vlc_object_detach( id->pp_filter[i] );
1155 if( id->pp_filter[i]->p_module )
1156 module_Unneed( id->pp_filter[i], id->pp_filter[i]->p_module );
1157 vlc_object_destroy( id->pp_filter[i] );
1161 static int transcode_audio_process( sout_stream_t *p_stream,
1162 sout_stream_id_t *id,
1163 block_t *in, block_t **out )
1165 sout_stream_sys_t *p_sys = p_stream->p_sys;
1166 aout_buffer_t *p_audio_buf;
1167 block_t *p_block, *p_audio_block;
1171 while( (p_audio_buf = id->p_decoder->pf_decode_audio( id->p_decoder,
1174 if( p_sys->b_master_sync )
1176 mtime_t i_dts = date_Get( &id->interpolated_pts ) + 1;
1177 p_sys->i_master_drift = p_audio_buf->start_date - i_dts;
1178 date_Increment( &id->interpolated_pts, p_audio_buf->i_nb_samples );
1179 p_audio_buf->start_date -= p_sys->i_master_drift;
1180 p_audio_buf->end_date -= p_sys->i_master_drift;
1183 p_audio_block = p_audio_buf->p_sys;
1184 p_audio_block->i_buffer = p_audio_buf->i_nb_bytes;
1185 p_audio_block->i_dts = p_audio_block->i_pts =
1186 p_audio_buf->start_date;
1187 p_audio_block->i_length = p_audio_buf->end_date -
1188 p_audio_buf->start_date;
1189 p_audio_block->i_samples = p_audio_buf->i_nb_samples;
1191 /* Run filter chain */
1192 for( i = 0; i < id->i_filter; i++ )
1195 id->pp_filter[i]->pf_audio_filter( id->pp_filter[i],
1199 p_audio_buf->p_buffer = p_audio_block->p_buffer;
1200 p_audio_buf->i_nb_bytes = p_audio_block->i_buffer;
1201 p_audio_buf->i_nb_samples = p_audio_block->i_samples;
1202 p_audio_buf->start_date = p_audio_block->i_dts;
1203 p_audio_buf->end_date = p_audio_block->i_dts + p_audio_block->i_length;
1205 p_block = id->p_encoder->pf_encode_audio( id->p_encoder, p_audio_buf );
1206 block_ChainAppend( out, p_block );
1207 block_Release( p_audio_block );
1208 free( p_audio_buf );
1214 static void audio_release_buffer( aout_buffer_t *p_buffer )
1216 if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1217 if( p_buffer ) free( p_buffer );
1220 static aout_buffer_t *audio_new_buffer( decoder_t *p_dec, int i_samples )
1222 aout_buffer_t *p_buffer;
1226 if( p_dec->fmt_out.audio.i_bitspersample )
1228 i_size = i_samples * p_dec->fmt_out.audio.i_bitspersample / 8 *
1229 p_dec->fmt_out.audio.i_channels;
1231 else if( p_dec->fmt_out.audio.i_bytes_per_frame &&
1232 p_dec->fmt_out.audio.i_frame_length )
1234 i_size = i_samples * p_dec->fmt_out.audio.i_bytes_per_frame /
1235 p_dec->fmt_out.audio.i_frame_length;
1239 i_size = i_samples * 4 * p_dec->fmt_out.audio.i_channels;
1242 p_buffer = malloc( sizeof(aout_buffer_t) );
1243 p_buffer->pf_release = audio_release_buffer;
1244 p_buffer->p_sys = p_block = block_New( p_dec, i_size );
1246 p_buffer->p_buffer = p_block->p_buffer;
1247 p_buffer->i_size = p_buffer->i_nb_bytes = p_block->i_buffer;
1248 p_buffer->i_nb_samples = i_samples;
1249 p_block->i_samples = i_samples;
1254 static void audio_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1256 if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1257 if( p_buffer ) free( p_buffer );
1263 static int transcode_video_new( sout_stream_t *p_stream, sout_stream_id_t *id )
1265 sout_stream_sys_t *p_sys = p_stream->p_sys;
1272 /* Initialization of decoder structures */
1273 id->p_decoder->fmt_out = id->p_decoder->fmt_in;
1274 id->p_decoder->fmt_out.i_extra = 0;
1275 id->p_decoder->fmt_out.p_extra = 0;
1276 id->p_decoder->pf_decode_video = 0;
1277 id->p_decoder->pf_vout_buffer_new = video_new_buffer_decoder;
1278 id->p_decoder->pf_vout_buffer_del = video_del_buffer_decoder;
1279 id->p_decoder->pf_picture_link = video_link_picture_decoder;
1280 id->p_decoder->pf_picture_unlink = video_unlink_picture_decoder;
1281 id->p_decoder->p_owner = malloc( sizeof(decoder_owner_sys_t) );
1282 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1283 id->p_decoder->p_owner->pp_pics[i] = 0;
1284 //id->p_decoder->p_cfg = p_sys->p_video_cfg;
1286 id->p_decoder->p_module =
1287 module_Need( id->p_decoder, "decoder", "$codec", 0 );
1289 if( !id->p_decoder->p_module )
1291 msg_Err( p_stream, "cannot find decoder" );
1292 return VLC_EGENERIC;
1297 * Because some info about the decoded input will only be available
1298 * once the first frame is decoded, we actually only test the availability
1299 * of the encoder here.
1302 /* Initialization of encoder format structures */
1303 es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1304 id->p_decoder->fmt_out.i_codec );
1305 id->p_encoder->fmt_in.video.i_chroma = id->p_decoder->fmt_out.i_codec;
1307 /* The dimensions will be set properly later on.
1308 * Just put sensible values so we can test an encoder is available. */
1309 id->p_encoder->fmt_in.video.i_width =
1310 id->p_encoder->fmt_out.video.i_width ?
1311 id->p_encoder->fmt_out.video.i_width :
1312 id->p_decoder->fmt_in.video.i_width ?
1313 id->p_decoder->fmt_in.video.i_width : 16;
1314 id->p_encoder->fmt_in.video.i_height =
1315 id->p_encoder->fmt_out.video.i_height ?
1316 id->p_encoder->fmt_out.video.i_height :
1317 id->p_decoder->fmt_in.video.i_height ?
1318 id->p_decoder->fmt_in.video.i_height : 16;
1319 id->p_encoder->fmt_in.video.i_frame_rate = 25;
1320 id->p_encoder->fmt_in.video.i_frame_rate_base = 1;
1322 id->p_encoder->i_threads = p_sys->i_threads;
1323 id->p_encoder->p_cfg = p_sys->p_video_cfg;
1325 id->p_encoder->p_module =
1326 module_Need( id->p_encoder, "encoder", p_sys->psz_venc, VLC_TRUE );
1327 if( !id->p_encoder->p_module )
1329 msg_Err( p_stream, "cannot find encoder" );
1330 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1331 id->p_decoder->p_module = 0;
1332 return VLC_EGENERIC;
1335 /* Close the encoder.
1336 * We'll open it only when we have the first frame. */
1337 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1338 id->p_encoder->p_module = NULL;
1340 if( p_sys->i_threads >= 1 )
1342 p_sys->id_video = id;
1343 vlc_mutex_init( p_stream, &p_sys->lock_out );
1344 vlc_cond_init( p_stream, &p_sys->cond );
1345 memset( p_sys->pp_pics, 0, sizeof(p_sys->pp_pics) );
1346 p_sys->i_first_pic = 0;
1347 p_sys->i_last_pic = 0;
1348 p_sys->p_buffers = NULL;
1349 p_sys->b_die = p_sys->b_error = 0;
1350 if( vlc_thread_create( p_sys, "encoder", EncoderThread,
1351 VLC_THREAD_PRIORITY_VIDEO, VLC_FALSE ) )
1353 msg_Err( p_stream, "cannot spawn encoder thread" );
1354 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1355 id->p_decoder->p_module = 0;
1356 return VLC_EGENERIC;
1360 date_Set( &id->interpolated_pts, 0 );
1365 static int transcode_video_encoder_open( sout_stream_t *p_stream,
1366 sout_stream_id_t *id )
1368 sout_stream_sys_t *p_sys = p_stream->p_sys;
1370 /* Hack because of the copy packetizer which can fail to detect the
1371 * proper size (which forces us to wait until the 1st frame
1373 int i_width = id->p_decoder->fmt_out.video.i_width -
1374 p_sys->i_crop_left - p_sys->i_crop_right;
1375 int i_height = id->p_decoder->fmt_out.video.i_height -
1376 p_sys->i_crop_top - p_sys->i_crop_bottom;
1378 if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1379 id->p_encoder->fmt_out.video.i_height <= 0 && p_sys->f_scale )
1381 /* Apply the scaling */
1382 id->p_encoder->fmt_out.video.i_width = i_width * p_sys->f_scale;
1383 id->p_encoder->fmt_out.video.i_height = i_height * p_sys->f_scale;
1385 else if( id->p_encoder->fmt_out.video.i_width > 0 &&
1386 id->p_encoder->fmt_out.video.i_height <= 0 )
1388 id->p_encoder->fmt_out.video.i_height =
1389 id->p_encoder->fmt_out.video.i_width / (double)i_width * i_height;
1391 else if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1392 id->p_encoder->fmt_out.video.i_height > 0 )
1394 id->p_encoder->fmt_out.video.i_width =
1395 id->p_encoder->fmt_out.video.i_height / (double)i_height * i_width;
1398 /* Make sure the size is at least a multiple of 2 */
1399 id->p_encoder->fmt_out.video.i_width =
1400 (id->p_encoder->fmt_out.video.i_width + 1) >> 1 << 1;
1401 id->p_encoder->fmt_out.video.i_height =
1402 (id->p_encoder->fmt_out.video.i_height + 1) >> 1 << 1;
1404 id->p_encoder->fmt_in.video.i_width =
1405 id->p_encoder->fmt_out.video.i_width;
1406 id->p_encoder->fmt_in.video.i_height =
1407 id->p_encoder->fmt_out.video.i_height;
1409 if( !id->p_encoder->fmt_out.video.i_frame_rate ||
1410 !id->p_encoder->fmt_out.video.i_frame_rate_base )
1412 if( id->p_decoder->fmt_out.video.i_frame_rate &&
1413 id->p_decoder->fmt_out.video.i_frame_rate_base )
1415 id->p_encoder->fmt_out.video.i_frame_rate =
1416 id->p_decoder->fmt_out.video.i_frame_rate;
1417 id->p_encoder->fmt_out.video.i_frame_rate_base =
1418 id->p_decoder->fmt_out.video.i_frame_rate_base;
1422 /* Pick a sensible default value */
1423 id->p_encoder->fmt_out.video.i_frame_rate = 25;
1424 id->p_encoder->fmt_out.video.i_frame_rate_base = 1;
1428 id->p_encoder->fmt_in.video.i_frame_rate =
1429 id->p_encoder->fmt_out.video.i_frame_rate;
1430 id->p_encoder->fmt_in.video.i_frame_rate_base =
1431 id->p_encoder->fmt_out.video.i_frame_rate_base;
1433 date_Init( &id->interpolated_pts,
1434 id->p_encoder->fmt_out.video.i_frame_rate,
1435 id->p_encoder->fmt_out.video.i_frame_rate_base );
1437 /* Check whether a particular aspect ratio was requested */
1438 if( !id->p_encoder->fmt_out.video.i_aspect )
1440 id->p_encoder->fmt_out.video.i_aspect =
1441 id->p_decoder->fmt_out.video.i_aspect;
1443 id->p_encoder->fmt_in.video.i_aspect =
1444 id->p_encoder->fmt_out.video.i_aspect;
1446 id->p_encoder->p_module =
1447 module_Need( id->p_encoder, "encoder", p_sys->psz_venc, VLC_TRUE );
1448 if( !id->p_encoder->p_module )
1450 msg_Err( p_stream, "cannot find encoder" );
1451 return VLC_EGENERIC;
1454 id->p_encoder->fmt_in.video.i_chroma = id->p_encoder->fmt_in.i_codec;
1456 /* Hack for mp2v/mp1v transcoding support */
1457 if( id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','1','v') ||
1458 id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','2','v') )
1460 id->p_encoder->fmt_out.i_codec = VLC_FOURCC('m','p','g','v');
1463 id->id = p_stream->p_sys->p_out->pf_add( p_stream->p_sys->p_out,
1464 &id->p_encoder->fmt_out );
1467 msg_Err( p_stream, "cannot add this stream" );
1468 return VLC_EGENERIC;
1474 static void transcode_video_close( sout_stream_t *p_stream,
1475 sout_stream_id_t *id )
1479 if( p_stream->p_sys->i_threads >= 1 )
1481 vlc_mutex_lock( &p_stream->p_sys->lock_out );
1482 p_stream->p_sys->b_die = 1;
1483 vlc_cond_signal( &p_stream->p_sys->cond );
1484 vlc_mutex_unlock( &p_stream->p_sys->lock_out );
1485 vlc_thread_join( p_stream->p_sys );
1486 vlc_mutex_destroy( &p_stream->p_sys->lock_out );
1487 vlc_cond_destroy( &p_stream->p_sys->cond );
1491 if( id->p_decoder->p_module )
1492 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1494 if( id->p_decoder->p_owner )
1496 /* Clean-up pictures ring buffer */
1497 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1499 if( id->p_decoder->p_owner->pp_pics[i] )
1500 video_del_buffer( VLC_OBJECT(id->p_decoder),
1501 id->p_decoder->p_owner->pp_pics[i] );
1503 free( id->p_decoder->p_owner );
1507 if( id->p_encoder->p_module )
1508 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1511 for( i = 0; i < id->i_filter; i++ )
1513 vlc_object_detach( id->pp_filter[i] );
1514 if( id->pp_filter[i]->p_module )
1515 module_Unneed( id->pp_filter[i], id->pp_filter[i]->p_module );
1517 /* Clean-up pictures ring buffer */
1518 for( j = 0; j < PICTURE_RING_SIZE; j++ )
1520 if( id->pp_filter[i]->p_owner->pp_pics[j] )
1521 video_del_buffer( VLC_OBJECT(id->pp_filter[i]),
1522 id->pp_filter[i]->p_owner->pp_pics[j] );
1524 free( id->pp_filter[i]->p_owner );
1526 vlc_object_destroy( id->pp_filter[i] );
1530 static int transcode_video_process( sout_stream_t *p_stream,
1531 sout_stream_id_t *id,
1532 block_t *in, block_t **out )
1534 sout_stream_sys_t *p_sys = p_stream->p_sys;
1535 int i_duplicate = 1, i;
1539 while( (p_pic = id->p_decoder->pf_decode_video( id->p_decoder, &in )) )
1541 subpicture_t *p_subpic = 0;
1543 if( p_stream->p_sout->i_out_pace_nocontrol && p_sys->b_hurry_up )
1545 mtime_t current_date = mdate();
1546 if( current_date + 50000 > p_pic->date )
1548 msg_Dbg( p_stream, "late picture skipped ("I64Fd")",
1549 current_date + 50000 - p_pic->date );
1550 p_pic->pf_release( p_pic );
1555 if( p_sys->b_master_sync )
1557 mtime_t i_video_drift;
1558 mtime_t i_master_drift = p_sys->i_master_drift;
1561 if( !i_master_drift )
1563 /* No audio track ? */
1564 p_sys->i_master_drift = i_master_drift = p_pic->date;
1567 i_pts = date_Get( &id->interpolated_pts ) + 1;
1568 i_video_drift = p_pic->date - i_pts;
1571 /* Set the pts of the frame being encoded */
1572 p_pic->date = i_pts;
1574 if( i_video_drift < i_master_drift - 50000 )
1577 msg_Dbg( p_stream, "dropping frame (%i)",
1578 (int)(i_video_drift - i_master_drift) );
1580 p_pic->pf_release( p_pic );
1583 else if( i_video_drift > i_master_drift + 50000 )
1586 msg_Dbg( p_stream, "adding frame (%i)",
1587 (int)(i_video_drift - i_master_drift) );
1593 if( !id->p_encoder->p_module )
1595 if( transcode_video_encoder_open( p_stream, id ) != VLC_SUCCESS )
1597 p_pic->pf_release( p_pic );
1598 transcode_video_close( p_stream, id );
1599 id->b_transcode = VLC_FALSE;
1600 return VLC_EGENERIC;
1604 if( p_stream->p_sys->b_deinterlace )
1606 id->pp_filter[id->i_filter] =
1607 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1608 vlc_object_attach( id->pp_filter[id->i_filter], p_stream );
1610 id->pp_filter[id->i_filter]->pf_vout_buffer_new =
1611 video_new_buffer_filter;
1612 id->pp_filter[id->i_filter]->pf_vout_buffer_del =
1613 video_del_buffer_filter;
1615 id->pp_filter[id->i_filter]->fmt_in = id->p_decoder->fmt_out;
1616 id->pp_filter[id->i_filter]->fmt_out = id->p_decoder->fmt_out;
1617 id->pp_filter[id->i_filter]->p_cfg = p_sys->p_deinterlace_cfg;
1618 id->pp_filter[id->i_filter]->p_module =
1619 module_Need( id->pp_filter[id->i_filter],
1620 "video filter2", p_sys->psz_deinterlace, 0 );
1621 if( id->pp_filter[id->i_filter]->p_module )
1623 id->pp_filter[id->i_filter]->p_owner =
1624 malloc( sizeof(filter_owner_sys_t) );
1625 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1626 id->pp_filter[id->i_filter]->p_owner->pp_pics[i] = 0;
1632 msg_Dbg( p_stream, "no video filter found" );
1633 vlc_object_detach( id->pp_filter[id->i_filter] );
1634 vlc_object_destroy( id->pp_filter[id->i_filter] );
1638 /* Check if we need a filter for chroma conversion or resizing */
1639 if( id->p_decoder->fmt_out.video.i_chroma !=
1640 id->p_encoder->fmt_in.video.i_chroma ||
1641 id->p_decoder->fmt_out.video.i_width !=
1642 id->p_encoder->fmt_out.video.i_width ||
1643 id->p_decoder->fmt_out.video.i_height !=
1644 id->p_encoder->fmt_out.video.i_height ||
1645 p_sys->i_crop_top > 0 || p_sys->i_crop_bottom > 0 ||
1646 p_sys->i_crop_left > 0 || p_sys->i_crop_right > 0 )
1648 id->pp_filter[id->i_filter] =
1649 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1650 vlc_object_attach( id->pp_filter[id->i_filter], p_stream );
1652 id->pp_filter[id->i_filter]->pf_vout_buffer_new =
1653 video_new_buffer_filter;
1654 id->pp_filter[id->i_filter]->pf_vout_buffer_del =
1655 video_del_buffer_filter;
1657 id->pp_filter[id->i_filter]->fmt_in = id->p_decoder->fmt_out;
1658 id->pp_filter[id->i_filter]->fmt_out = id->p_encoder->fmt_in;
1659 id->pp_filter[id->i_filter]->p_cfg = NULL;
1660 id->pp_filter[id->i_filter]->p_module =
1661 module_Need( id->pp_filter[id->i_filter],
1662 "video filter2", 0, 0 );
1663 if( id->pp_filter[id->i_filter]->p_module )
1665 id->pp_filter[id->i_filter]->p_owner =
1666 malloc( sizeof(filter_owner_sys_t) );
1667 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1668 id->pp_filter[id->i_filter]->p_owner->pp_pics[i] = 0;
1674 msg_Dbg( p_stream, "no video filter found" );
1675 vlc_object_detach( id->pp_filter[id->i_filter] );
1676 vlc_object_destroy( id->pp_filter[id->i_filter] );
1678 p_pic->pf_release( p_pic );
1679 transcode_video_close( p_stream, id );
1680 id->b_transcode = VLC_FALSE;
1681 return VLC_EGENERIC;
1686 /* Run filter chain */
1687 for( i = 0; i < id->i_filter; i++ )
1689 p_pic = id->pp_filter[i]->pf_video_filter(id->pp_filter[i], p_pic);
1696 /* Check if we have a subpicture to overlay */
1699 p_subpic = spu_SortSubpictures( p_sys->p_spu, p_pic->date );
1700 /* TODO: get another pic */
1703 /* Overlay subpicture */
1706 int i_scale_width, i_scale_height;
1707 video_format_t *p_fmt;
1709 i_scale_width = id->p_encoder->fmt_in.video.i_width * 1000 /
1710 id->p_decoder->fmt_out.video.i_width;
1711 i_scale_height = id->p_encoder->fmt_in.video.i_height * 1000 /
1712 id->p_decoder->fmt_out.video.i_height;
1714 if( p_pic->i_refcount && !id->i_filter )
1716 /* We can't modify the picture, we need to duplicate it */
1717 picture_t *p_tmp = video_new_buffer_decoder( id->p_decoder );
1720 vout_CopyPicture( p_stream, p_tmp, p_pic );
1721 p_pic->pf_release( p_pic );
1727 p_fmt = &id->pp_filter[id->i_filter -1]->fmt_out.video;
1729 p_fmt = &id->p_decoder->fmt_out.video;
1731 /* FIXME (shouldn't have to be done here) */
1732 p_fmt->i_sar_num = p_fmt->i_aspect *
1733 p_fmt->i_height / p_fmt->i_width;
1734 p_fmt->i_sar_den = VOUT_ASPECT_FACTOR;
1736 spu_RenderSubpictures( p_sys->p_spu, p_fmt, p_pic, p_pic, p_subpic,
1737 i_scale_width, i_scale_height );
1740 if( p_sys->i_threads >= 1 )
1742 vlc_mutex_lock( &p_sys->lock_out );
1743 p_sys->pp_pics[p_sys->i_last_pic++] = p_pic;
1744 p_sys->i_last_pic %= PICTURE_RING_SIZE;
1745 *out = p_sys->p_buffers;
1746 p_sys->p_buffers = NULL;
1747 vlc_cond_signal( &p_sys->cond );
1748 vlc_mutex_unlock( &p_sys->lock_out );
1753 p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
1754 block_ChainAppend( out, p_block );
1756 if( p_sys->b_master_sync )
1757 date_Increment( &id->interpolated_pts, 1 );
1759 if( p_sys->b_master_sync && i_duplicate > 1 )
1761 mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
1762 date_Increment( &id->interpolated_pts, 1 );
1763 p_pic->date = i_pts;
1764 p_block = id->p_encoder->pf_encode_video(id->p_encoder, p_pic);
1765 block_ChainAppend( out, p_block );
1768 p_pic->pf_release( p_pic );
1775 static int EncoderThread( sout_stream_sys_t *p_sys )
1777 sout_stream_id_t *id = p_sys->id_video;
1780 while( !p_sys->b_die && !p_sys->b_error )
1784 vlc_mutex_lock( &p_sys->lock_out );
1785 while( p_sys->i_last_pic == p_sys->i_first_pic )
1787 vlc_cond_wait( &p_sys->cond, &p_sys->lock_out );
1788 if( p_sys->b_die || p_sys->b_error ) break;
1790 if( p_sys->b_die || p_sys->b_error )
1792 vlc_mutex_unlock( &p_sys->lock_out );
1796 p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
1797 p_sys->i_first_pic %= PICTURE_RING_SIZE;
1798 vlc_mutex_unlock( &p_sys->lock_out );
1800 p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
1801 vlc_mutex_lock( &p_sys->lock_out );
1802 block_ChainAppend( &p_sys->p_buffers, p_block );
1804 if( p_sys->b_master_sync )
1805 date_Increment( &id->interpolated_pts, 1 );
1808 if( p_sys->b_master_sync && i_duplicate > 1 )
1810 mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
1811 date_Increment( &id->interpolated_pts, 1 );
1812 p_pic->date = i_pts;
1813 p_block = id->p_encoder->pf_encode_video(id->p_encoder, p_pic);
1814 block_ChainAppend( &p_sys->p_buffers, p_block );
1817 vlc_mutex_unlock( &p_sys->lock_out );
1819 p_pic->pf_release( p_pic );
1822 while( p_sys->i_last_pic != p_sys->i_first_pic )
1824 p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
1825 p_sys->i_first_pic %= PICTURE_RING_SIZE;
1827 p_pic->pf_release( p_pic );
1830 block_ChainRelease( p_sys->p_buffers );
1835 struct picture_sys_t
1837 vlc_object_t *p_owner;
1840 static void video_release_buffer( picture_t *p_pic )
1842 if( p_pic && !p_pic->i_refcount && p_pic->pf_release && p_pic->p_sys )
1844 video_del_buffer_decoder( (decoder_t *)p_pic->p_sys->p_owner, p_pic );
1846 else if( p_pic && p_pic->i_refcount > 0 ) p_pic->i_refcount--;
1849 static picture_t *video_new_buffer( vlc_object_t *p_this, picture_t **pp_ring )
1851 decoder_t *p_dec = (decoder_t *)p_this;
1855 /* Find an empty space in the picture ring buffer */
1856 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1858 if( pp_ring[i] != 0 && pp_ring[i]->i_status == DESTROYED_PICTURE )
1860 pp_ring[i]->i_status = RESERVED_PICTURE;
1864 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1866 if( pp_ring[i] == 0 ) break;
1869 if( i == PICTURE_RING_SIZE )
1871 msg_Err( p_this, "decoder/filter is leaking pictures, "
1872 "resetting its ring buffer" );
1874 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1876 pp_ring[i]->pf_release( pp_ring[i] );
1882 p_pic = malloc( sizeof(picture_t) );
1883 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
1884 vout_AllocatePicture( VLC_OBJECT(p_dec), p_pic,
1885 p_dec->fmt_out.video.i_chroma,
1886 p_dec->fmt_out.video.i_width,
1887 p_dec->fmt_out.video.i_height,
1888 p_dec->fmt_out.video.i_aspect );
1890 if( !p_pic->i_planes )
1896 p_pic->pf_release = video_release_buffer;
1897 p_pic->p_sys = malloc( sizeof(picture_sys_t) );
1898 p_pic->p_sys->p_owner = p_this;
1899 p_pic->i_status = RESERVED_PICTURE;
1906 static picture_t *video_new_buffer_decoder( decoder_t *p_dec )
1908 return video_new_buffer( VLC_OBJECT(p_dec),
1909 p_dec->p_owner->pp_pics );
1912 static picture_t *video_new_buffer_filter( filter_t *p_filter )
1914 return video_new_buffer( VLC_OBJECT(p_filter),
1915 p_filter->p_owner->pp_pics );
1918 static void video_del_buffer( vlc_object_t *p_this, picture_t *p_pic )
1920 if( p_pic && p_pic->p_data_orig ) free( p_pic->p_data_orig );
1921 if( p_pic && p_pic->p_sys ) free( p_pic->p_sys );
1922 if( p_pic ) free( p_pic );
1925 static void video_del_buffer_decoder( decoder_t *p_decoder, picture_t *p_pic )
1927 p_pic->i_refcount = 0;
1928 p_pic->i_status = DESTROYED_PICTURE;
1931 static void video_del_buffer_filter( filter_t *p_filter, picture_t *p_pic )
1933 p_pic->i_refcount = 0;
1934 p_pic->i_status = DESTROYED_PICTURE;
1937 static void video_link_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
1939 p_pic->i_refcount++;
1942 static void video_unlink_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
1944 video_release_buffer( p_pic );
1950 static subpicture_t *spu_new_buffer( decoder_t * );
1951 static void spu_del_buffer( decoder_t *, subpicture_t * );
1953 static int transcode_spu_new( sout_stream_t *p_stream, sout_stream_id_t *id )
1955 sout_stream_sys_t *p_sys = p_stream->p_sys;
1961 /* Initialization of decoder structures */
1962 id->p_decoder->pf_spu_buffer_new = spu_new_buffer;
1963 id->p_decoder->pf_spu_buffer_del = spu_del_buffer;
1964 id->p_decoder->p_owner = (decoder_owner_sys_t *)p_stream;
1965 //id->p_decoder->p_cfg = p_sys->p_spu_cfg;
1967 id->p_decoder->p_module =
1968 module_Need( id->p_decoder, "decoder", "$codec", 0 );
1970 if( !id->p_decoder->p_module )
1972 msg_Err( p_stream, "cannot find decoder" );
1973 return VLC_EGENERIC;
1976 if( !p_sys->b_soverlay )
1982 /* Initialization of encoder format structures */
1983 es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1984 id->p_decoder->fmt_in.i_codec );
1986 id->p_encoder->p_cfg = p_sys->p_spu_cfg;
1988 id->p_encoder->p_module =
1989 module_Need( id->p_encoder, "encoder", p_sys->psz_senc, VLC_TRUE );
1991 if( !id->p_encoder->p_module )
1993 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1994 msg_Err( p_stream, "cannot find encoder" );
1995 return VLC_EGENERIC;
2001 p_sys->p_spu = spu_Create( p_stream );
2002 spu_Init( p_sys->p_spu );
2008 static void transcode_spu_close( sout_stream_t *p_stream, sout_stream_id_t *id)
2011 if( id->p_decoder->p_module )
2012 module_Unneed( id->p_decoder, id->p_decoder->p_module );
2015 if( id->p_encoder->p_module )
2016 module_Unneed( id->p_encoder, id->p_encoder->p_module );
2019 static int transcode_spu_process( sout_stream_t *p_stream,
2020 sout_stream_id_t *id,
2021 block_t *in, block_t **out )
2023 sout_stream_sys_t *p_sys = p_stream->p_sys;
2024 subpicture_t *p_subpic;
2027 p_subpic = id->p_decoder->pf_decode_sub( id->p_decoder, &in );
2028 if( !p_subpic ) return VLC_EGENERIC;
2030 if( p_sys->b_master_sync && p_sys->i_master_drift )
2032 p_subpic->i_start -= p_sys->i_master_drift;
2033 if( p_subpic->i_stop ) p_subpic->i_stop -= p_sys->i_master_drift;
2036 if( p_sys->b_soverlay )
2038 spu_DisplaySubpicture( p_sys->p_spu, p_subpic );
2044 p_block = id->p_encoder->pf_encode_sub( id->p_encoder, p_subpic );
2045 spu_del_buffer( id->p_decoder, p_subpic );
2049 block_ChainAppend( out, p_block );
2054 return VLC_EGENERIC;
2057 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2059 sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
2060 return spu_CreateSubpicture( p_stream->p_sys->p_spu );
2063 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2065 sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
2066 spu_DestroySubpicture( p_stream->p_sys->p_spu, p_subpic );