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];
325 sout_stream_sys_t *p_sys;
327 struct filter_owner_sys_t
329 picture_t *pp_pics[PICTURE_RING_SIZE];
330 sout_stream_sys_t *p_sys;
333 /*****************************************************************************
335 *****************************************************************************/
336 static int Open( vlc_object_t *p_this )
338 sout_stream_t *p_stream = (sout_stream_t*)p_this;
339 sout_stream_sys_t *p_sys;
342 p_sys = vlc_object_create( p_this, sizeof( sout_stream_sys_t ) );
344 p_sys->p_out = sout_StreamNew( p_stream->p_sout, p_stream->psz_next );
347 msg_Err( p_stream, "cannot create chain" );
348 vlc_object_destroy( p_sys );
352 p_sys->i_master_drift = 0;
354 sout_CfgParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
357 /* Audio transcoding parameters */
358 var_Get( p_stream, SOUT_CFG_PREFIX "aenc", &val );
359 p_sys->psz_aenc = NULL;
360 p_sys->p_audio_cfg = NULL;
361 if( val.psz_string && *val.psz_string )
364 psz_next = sout_CfgCreate( &p_sys->psz_aenc, &p_sys->p_audio_cfg,
366 if( psz_next ) free( psz_next );
368 if( val.psz_string ) free( val.psz_string );
370 var_Get( p_stream, SOUT_CFG_PREFIX "acodec", &val );
372 if( val.psz_string && *val.psz_string )
375 memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
376 p_sys->i_acodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
378 if( val.psz_string ) free( val.psz_string );
380 var_Get( p_stream, SOUT_CFG_PREFIX "ab", &val );
381 p_sys->i_abitrate = val.i_int;
382 if( p_sys->i_abitrate < 4000 ) p_sys->i_abitrate *= 1000;
384 var_Get( p_stream, SOUT_CFG_PREFIX "samplerate", &val );
385 p_sys->i_sample_rate = val.i_int;
387 var_Get( p_stream, SOUT_CFG_PREFIX "channels", &val );
388 p_sys->i_channels = val.i_int;
390 if( p_sys->i_acodec )
392 msg_Dbg( p_stream, "codec audio=%4.4s %dHz %d channels %dKb/s",
393 (char *)&p_sys->i_acodec, p_sys->i_sample_rate,
394 p_sys->i_channels, p_sys->i_abitrate / 1000 );
397 /* Video transcoding parameters */
398 var_Get( p_stream, SOUT_CFG_PREFIX "venc", &val );
399 p_sys->psz_venc = NULL;
400 p_sys->p_video_cfg = NULL;
401 if( val.psz_string && *val.psz_string )
404 psz_next = sout_CfgCreate( &p_sys->psz_venc, &p_sys->p_video_cfg,
406 if( psz_next ) free( psz_next );
408 if( val.psz_string ) free( val.psz_string );
410 var_Get( p_stream, SOUT_CFG_PREFIX "vcodec", &val );
412 if( val.psz_string && *val.psz_string )
415 memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
416 p_sys->i_vcodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
418 if( val.psz_string ) free( val.psz_string );
420 var_Get( p_stream, SOUT_CFG_PREFIX "vb", &val );
421 p_sys->i_vbitrate = val.i_int;
422 if( p_sys->i_vbitrate < 16000 ) p_sys->i_vbitrate *= 1000;
424 var_Get( p_stream, SOUT_CFG_PREFIX "scale", &val );
425 p_sys->f_scale = val.f_float;
427 var_Get( p_stream, SOUT_CFG_PREFIX "fps", &val );
428 p_sys->f_fps = val.f_float;
430 var_Get( p_stream, SOUT_CFG_PREFIX "hurry-up", &val );
431 p_sys->b_hurry_up = val.b_bool;
433 var_Get( p_stream, SOUT_CFG_PREFIX "width", &val );
434 p_sys->i_width = val.i_int;
436 var_Get( p_stream, SOUT_CFG_PREFIX "height", &val );
437 p_sys->i_height = val.i_int;
439 var_Get( p_stream, SOUT_CFG_PREFIX "deinterlace", &val );
440 p_sys->b_deinterlace = val.b_bool;
442 var_Get( p_stream, SOUT_CFG_PREFIX "deinterlace-module", &val );
443 p_sys->psz_deinterlace = NULL;
444 p_sys->p_deinterlace_cfg = NULL;
445 if( val.psz_string && *val.psz_string )
448 psz_next = sout_CfgCreate( &p_sys->psz_deinterlace,
449 &p_sys->p_deinterlace_cfg,
451 if( psz_next ) free( psz_next );
453 if( val.psz_string ) free( val.psz_string );
455 var_Get( p_stream, SOUT_CFG_PREFIX "croptop", &val );
456 p_sys->i_crop_top = val.i_int;
457 var_Get( p_stream, SOUT_CFG_PREFIX "cropbottom", &val );
458 p_sys->i_crop_bottom = val.i_int;
459 var_Get( p_stream, SOUT_CFG_PREFIX "cropleft", &val );
460 p_sys->i_crop_left = val.i_int;
461 var_Get( p_stream, SOUT_CFG_PREFIX "cropright", &val );
462 p_sys->i_crop_right = val.i_int;
464 var_Get( p_stream, SOUT_CFG_PREFIX "threads", &val );
465 p_sys->i_threads = val.i_int;
467 if( p_sys->i_vcodec )
469 msg_Dbg( p_stream, "codec video=%4.4s %dx%d scaling: %f %dkb/s",
470 (char *)&p_sys->i_vcodec, p_sys->i_width, p_sys->i_height,
471 p_sys->f_scale, p_sys->i_vbitrate / 1000 );
474 /* Subpictures transcoding parameters */
476 p_sys->psz_senc = NULL;
477 p_sys->p_spu_cfg = NULL;
480 var_Get( p_stream, SOUT_CFG_PREFIX "senc", &val );
481 if( val.psz_string && *val.psz_string )
484 psz_next = sout_CfgCreate( &p_sys->psz_senc, &p_sys->p_spu_cfg,
486 if( psz_next ) free( psz_next );
488 if( val.psz_string ) free( val.psz_string );
490 var_Get( p_stream, SOUT_CFG_PREFIX "scodec", &val );
491 if( val.psz_string && *val.psz_string )
494 memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
495 p_sys->i_scodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
497 if( val.psz_string ) free( val.psz_string );
499 if( p_sys->i_scodec )
501 msg_Dbg( p_stream, "codec spu=%4.4s", (char *)&p_sys->i_scodec );
504 var_Get( p_stream, SOUT_CFG_PREFIX "soverlay", &val );
505 p_sys->b_soverlay = val.b_bool;
507 var_Get( p_stream, SOUT_CFG_PREFIX "sfilter", &val );
508 if( val.psz_string && *val.psz_string )
510 p_sys->p_spu = spu_Create( p_stream );
511 var_Create( p_sys->p_spu, "sub-filter", VLC_VAR_STRING );
512 var_Set( p_sys->p_spu, "sub-filter", val );
513 spu_Init( p_sys->p_spu );
515 if( val.psz_string ) free( val.psz_string );
517 var_Get( p_stream, SOUT_CFG_PREFIX "audio-sync", &val );
518 p_sys->b_master_sync = val.b_bool;
519 if( p_sys->f_fps > 0 ) p_sys->b_master_sync = VLC_TRUE;
521 p_stream->pf_add = Add;
522 p_stream->pf_del = Del;
523 p_stream->pf_send = Send;
524 p_stream->p_sys = p_sys;
529 /*****************************************************************************
531 *****************************************************************************/
532 static void Close( vlc_object_t * p_this )
534 sout_stream_t *p_stream = (sout_stream_t*)p_this;
535 sout_stream_sys_t *p_sys = p_stream->p_sys;
537 sout_StreamDelete( p_sys->p_out );
539 while( p_sys->p_audio_cfg != NULL )
541 sout_cfg_t *p_next = p_sys->p_audio_cfg->p_next;
543 if( p_sys->p_audio_cfg->psz_name )
544 free( p_sys->p_audio_cfg->psz_name );
545 if( p_sys->p_audio_cfg->psz_value )
546 free( p_sys->p_audio_cfg->psz_value );
547 free( p_sys->p_audio_cfg );
549 p_sys->p_audio_cfg = p_next;
551 if( p_sys->psz_aenc ) free( p_sys->psz_aenc );
553 while( p_sys->p_video_cfg != NULL )
555 sout_cfg_t *p_next = p_sys->p_video_cfg->p_next;
557 if( p_sys->p_video_cfg->psz_name )
558 free( p_sys->p_video_cfg->psz_name );
559 if( p_sys->p_video_cfg->psz_value )
560 free( p_sys->p_video_cfg->psz_value );
561 free( p_sys->p_video_cfg );
563 p_sys->p_video_cfg = p_next;
565 if( p_sys->psz_venc ) free( p_sys->psz_venc );
567 while( p_sys->p_deinterlace_cfg != NULL )
569 sout_cfg_t *p_next = p_sys->p_deinterlace_cfg->p_next;
571 if( p_sys->p_deinterlace_cfg->psz_name )
572 free( p_sys->p_deinterlace_cfg->psz_name );
573 if( p_sys->p_deinterlace_cfg->psz_value )
574 free( p_sys->p_deinterlace_cfg->psz_value );
575 free( p_sys->p_deinterlace_cfg );
577 p_sys->p_deinterlace_cfg = p_next;
579 if( p_sys->psz_deinterlace ) free( p_sys->psz_deinterlace );
581 while( p_sys->p_spu_cfg != NULL )
583 sout_cfg_t *p_next = p_sys->p_spu_cfg->p_next;
585 if( p_sys->p_spu_cfg->psz_name )
586 free( p_sys->p_spu_cfg->psz_name );
587 if( p_sys->p_spu_cfg->psz_value )
588 free( p_sys->p_spu_cfg->psz_value );
589 free( p_sys->p_spu_cfg );
591 p_sys->p_spu_cfg = p_next;
593 if( p_sys->psz_senc ) free( p_sys->psz_senc );
595 if( p_sys->p_spu ) spu_Destroy( p_sys->p_spu );
597 vlc_object_destroy( p_sys );
600 struct sout_stream_id_t
602 vlc_fourcc_t b_transcode;
604 /* id of the out stream */
608 decoder_t *p_decoder;
611 filter_t *pp_filter[10];
615 encoder_t *p_encoder;
618 date_t interpolated_pts;
622 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
624 sout_stream_sys_t *p_sys = p_stream->p_sys;
625 sout_stream_id_t *id;
627 id = malloc( sizeof( sout_stream_id_t ) );
628 memset( id, 0, sizeof(sout_stream_id_t) );
631 id->p_decoder = NULL;
632 id->p_encoder = NULL;
634 /* Create decoder object */
635 id->p_decoder = vlc_object_create( p_stream, VLC_OBJECT_DECODER );
638 msg_Err( p_stream, "out of memory" );
641 vlc_object_attach( id->p_decoder, p_stream );
642 id->p_decoder->p_module = NULL;
643 id->p_decoder->fmt_in = *p_fmt;
644 id->p_decoder->b_pace_control = VLC_TRUE;
646 /* Create encoder object */
647 id->p_encoder = vlc_object_create( p_stream, VLC_OBJECT_ENCODER );
650 msg_Err( p_stream, "out of memory" );
653 vlc_object_attach( id->p_encoder, p_stream );
654 id->p_encoder->p_module = NULL;
656 /* Create destination format */
657 es_format_Init( &id->p_encoder->fmt_out, p_fmt->i_cat, 0 );
658 id->p_encoder->fmt_out.i_id = p_fmt->i_id;
659 id->p_encoder->fmt_out.i_group = p_fmt->i_group;
660 if( p_fmt->psz_language )
661 id->p_encoder->fmt_out.psz_language = strdup( p_fmt->psz_language );
663 if( p_fmt->i_cat == AUDIO_ES && (p_sys->i_acodec || p_sys->psz_aenc) )
666 "creating audio transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
667 (char*)&p_fmt->i_codec, (char*)&p_sys->i_acodec );
669 /* Complete destination format */
670 id->p_encoder->fmt_out.i_codec = p_sys->i_acodec;
671 id->p_encoder->fmt_out.audio.i_rate = p_sys->i_sample_rate > 0 ?
672 p_sys->i_sample_rate : (int)p_fmt->audio.i_rate;
673 id->p_encoder->fmt_out.i_bitrate = p_sys->i_abitrate;
674 id->p_encoder->fmt_out.audio.i_bitspersample =
675 p_fmt->audio.i_bitspersample;
676 id->p_encoder->fmt_out.audio.i_channels = p_sys->i_channels > 0 ?
677 p_sys->i_channels : p_fmt->audio.i_channels;
678 /* Sanity check for audio channels */
679 id->p_encoder->fmt_out.audio.i_channels =
680 __MIN( id->p_encoder->fmt_out.audio.i_channels,
681 id->p_decoder->fmt_in.audio.i_channels );
682 id->p_encoder->fmt_out.audio.i_original_channels =
683 id->p_decoder->fmt_in.audio.i_physical_channels;
684 if( id->p_decoder->fmt_in.audio.i_channels ==
685 id->p_encoder->fmt_out.audio.i_channels )
687 id->p_encoder->fmt_out.audio.i_physical_channels =
688 id->p_decoder->fmt_in.audio.i_physical_channels;
692 id->p_encoder->fmt_out.audio.i_physical_channels =
693 pi_channels_maps[id->p_encoder->fmt_out.audio.i_channels];
696 /* Build decoder -> filter -> encoder chain */
697 if( transcode_audio_new( p_stream, id ) )
699 msg_Err( p_stream, "cannot create audio chain" );
703 /* Open output stream */
704 id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
705 id->b_transcode = VLC_TRUE;
707 if( !id->id ) goto error;
709 date_Init( &id->interpolated_pts, p_fmt->audio.i_rate, 1 );
711 else if( p_fmt->i_cat == VIDEO_ES &&
712 (p_sys->i_vcodec != 0 || p_sys->psz_venc) )
715 "creating video transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
716 (char*)&p_fmt->i_codec, (char*)&p_sys->i_vcodec );
718 /* Complete destination format */
719 id->p_encoder->fmt_out.i_codec = p_sys->i_vcodec;
720 id->p_encoder->fmt_out.video.i_width = p_sys->i_width;
721 id->p_encoder->fmt_out.video.i_height = p_sys->i_height;
722 id->p_encoder->fmt_out.i_bitrate = p_sys->i_vbitrate;
724 /* Build decoder -> filter -> encoder chain */
725 if( transcode_video_new( p_stream, id ) )
727 msg_Err( p_stream, "cannot create video chain" );
731 /* Stream will be added later on because we don't know
732 * all the characteristics of the decoded stream yet */
733 id->b_transcode = VLC_TRUE;
735 if( p_sys->f_fps > 0 )
737 id->p_encoder->fmt_out.video.i_frame_rate =
738 (p_sys->f_fps * 1001) + 0.5;
739 id->p_encoder->fmt_out.video.i_frame_rate_base = 1001;
742 else if( p_fmt->i_cat == SPU_ES && (p_sys->i_scodec || p_sys->psz_senc) )
744 msg_Dbg( p_stream, "creating subtitles transcoding from fcc=`%4.4s' "
745 "to fcc=`%4.4s'", (char*)&p_fmt->i_codec,
746 (char*)&p_sys->i_scodec );
748 /* Complete destination format */
749 id->p_encoder->fmt_out.i_codec = p_sys->i_scodec;
751 /* build decoder -> filter -> encoder */
752 if( transcode_spu_new( p_stream, id ) )
754 msg_Err( p_stream, "cannot create subtitles chain" );
758 /* open output stream */
759 id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
760 id->b_transcode = VLC_TRUE;
762 if( !id->id ) goto error;
764 else if( p_fmt->i_cat == SPU_ES && p_sys->b_soverlay )
766 msg_Dbg( p_stream, "subtitles (fcc=`%4.4s') overlaying",
767 (char*)&p_fmt->i_codec );
769 id->b_transcode = VLC_TRUE;
771 /* Build decoder -> filter -> overlaying chain */
772 if( transcode_spu_new( p_stream, id ) )
774 msg_Err( p_stream, "cannot create subtitles chain" );
780 msg_Dbg( p_stream, "not transcoding a stream (fcc=`%4.4s')",
781 (char*)&p_fmt->i_codec );
782 id->id = p_sys->p_out->pf_add( p_sys->p_out, p_fmt );
783 id->b_transcode = VLC_FALSE;
785 if( !id->id ) goto error;
793 vlc_object_detach( id->p_decoder );
794 vlc_object_destroy( id->p_decoder );
799 vlc_object_detach( id->p_encoder );
800 vlc_object_destroy( id->p_encoder );
807 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
809 sout_stream_sys_t *p_sys = p_stream->p_sys;
811 if( id->b_transcode )
813 switch( id->p_decoder->fmt_in.i_cat )
816 transcode_audio_close( p_stream, id );
819 transcode_video_close( p_stream, id );
822 transcode_spu_close( p_stream, id );
827 if( id->id ) p_sys->p_out->pf_del( p_sys->p_out, id->id );
831 vlc_object_detach( id->p_decoder );
832 vlc_object_destroy( id->p_decoder );
837 vlc_object_detach( id->p_encoder );
838 vlc_object_destroy( id->p_encoder );
846 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
849 sout_stream_sys_t *p_sys = p_stream->p_sys;
852 if( !id->b_transcode && id->id )
854 if( p_sys->b_master_sync && p_sys->i_master_drift )
856 if( p_buffer->i_dts > 0 )
858 p_buffer->i_dts -= p_sys->i_master_drift;
859 if( p_buffer->i_dts < 0 )
861 block_Release( p_buffer );
865 if( p_buffer->i_pts > 0 )
867 p_buffer->i_pts -= p_sys->i_master_drift;
868 if( p_buffer->i_pts < 0 )
870 block_Release( p_buffer );
876 return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_buffer );
878 else if( !id->b_transcode )
880 block_Release( p_buffer );
884 switch( id->p_decoder->fmt_in.i_cat )
887 transcode_audio_process( p_stream, id, p_buffer, &p_out );
891 if( transcode_video_process( p_stream, id, p_buffer, &p_out )
899 if( transcode_spu_process( p_stream, id, p_buffer, &p_out ) !=
907 block_Release( p_buffer );
911 if( p_out ) return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_out );
915 /****************************************************************************
916 * decoder reencoder part
917 ****************************************************************************/
918 int audio_BitsPerSample( vlc_fourcc_t i_format )
922 case VLC_FOURCC('u','8',' ',' '):
923 case VLC_FOURCC('s','8',' ',' '):
926 case VLC_FOURCC('u','1','6','l'):
927 case VLC_FOURCC('s','1','6','l'):
928 case VLC_FOURCC('u','1','6','b'):
929 case VLC_FOURCC('s','1','6','b'):
932 case VLC_FOURCC('u','2','4','l'):
933 case VLC_FOURCC('s','2','4','l'):
934 case VLC_FOURCC('u','2','4','b'):
935 case VLC_FOURCC('s','2','4','b'):
938 case VLC_FOURCC('u','3','2','l'):
939 case VLC_FOURCC('s','3','2','l'):
940 case VLC_FOURCC('u','3','2','b'):
941 case VLC_FOURCC('s','3','2','b'):
942 case VLC_FOURCC('f','l','3','2'):
943 case VLC_FOURCC('f','i','3','2'):
946 case VLC_FOURCC('f','l','6','4'):
953 static filter_t *transcode_audio_filter_new( sout_stream_t *p_stream,
954 sout_stream_id_t *id,
955 es_format_t *p_fmt_in,
956 es_format_t *p_fmt_out )
958 filter_t *p_filter = vlc_object_create( p_stream, VLC_OBJECT_FILTER );
960 vlc_object_attach( p_filter, p_stream );
961 p_filter->pf_audio_buffer_new = __block_New;
963 p_filter->fmt_in = *p_fmt_in;
964 p_filter->fmt_out = *p_fmt_out;
966 p_filter->p_module = module_Need( p_filter, "audio filter2", 0, 0 );
967 if( p_filter->p_module )
969 p_filter->fmt_out.audio.i_bitspersample =
970 audio_BitsPerSample( p_filter->fmt_out.i_codec );
971 *p_fmt_in = p_filter->fmt_out;
975 vlc_object_detach( p_filter );
976 vlc_object_destroy( p_filter );
983 static int transcode_audio_new( sout_stream_t *p_stream,
984 sout_stream_id_t *id )
986 sout_stream_sys_t *p_sys = p_stream->p_sys;
987 es_format_t fmt_last;
994 /* Initialization of decoder structures */
995 id->p_decoder->fmt_out = id->p_decoder->fmt_in;
996 id->p_decoder->fmt_out.i_extra = 0;
997 id->p_decoder->fmt_out.p_extra = 0;
998 id->p_decoder->pf_decode_audio = 0;
999 id->p_decoder->pf_aout_buffer_new = audio_new_buffer;
1000 id->p_decoder->pf_aout_buffer_del = audio_del_buffer;
1001 //id->p_decoder->p_cfg = p_sys->p_video_cfg;
1003 id->p_decoder->p_module =
1004 module_Need( id->p_decoder, "decoder", "$codec", 0 );
1006 if( !id->p_decoder->p_module )
1008 msg_Err( p_stream, "cannot find decoder" );
1009 return VLC_EGENERIC;
1011 id->p_decoder->fmt_out.audio.i_bitspersample =
1012 audio_BitsPerSample( id->p_decoder->fmt_out.i_codec );
1013 fmt_last = id->p_decoder->fmt_out;
1014 /* FIX decoders so we don't have to do this */
1015 fmt_last.audio.i_rate = id->p_decoder->fmt_in.audio.i_rate;
1021 /* Initialization of encoder format structures */
1022 es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1023 id->p_decoder->fmt_out.i_codec );
1024 id->p_encoder->fmt_in.audio.i_format = id->p_decoder->fmt_out.i_codec;
1026 /* Initialization of encoder format structures */
1027 es_format_Init( &id->p_encoder->fmt_in, AUDIO_ES, AOUT_FMT_S16_NE );
1028 id->p_encoder->fmt_in.audio.i_format = AOUT_FMT_S16_NE;
1029 id->p_encoder->fmt_in.audio.i_rate = id->p_encoder->fmt_out.audio.i_rate;
1030 id->p_encoder->fmt_in.audio.i_physical_channels =
1031 id->p_encoder->fmt_out.audio.i_physical_channels;
1032 id->p_encoder->fmt_in.audio.i_original_channels =
1033 id->p_encoder->fmt_out.audio.i_original_channels;
1034 id->p_encoder->fmt_in.audio.i_channels =
1035 id->p_encoder->fmt_out.audio.i_channels;
1036 id->p_encoder->fmt_in.audio.i_bitspersample =
1037 audio_BitsPerSample( id->p_encoder->fmt_in.i_codec );
1039 id->p_encoder->p_cfg = p_stream->p_sys->p_audio_cfg;
1041 id->p_encoder->p_module =
1042 module_Need( id->p_encoder, "encoder", p_sys->psz_aenc, VLC_TRUE );
1043 if( !id->p_encoder->p_module )
1045 msg_Err( p_stream, "cannot find encoder" );
1046 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1047 id->p_decoder->p_module = 0;
1048 return VLC_EGENERIC;
1050 id->p_encoder->fmt_in.audio.i_format = id->p_encoder->fmt_in.i_codec;
1051 id->p_encoder->fmt_in.audio.i_bitspersample =
1052 audio_BitsPerSample( id->p_encoder->fmt_in.i_codec );
1054 /* Load conversion filters */
1055 if( fmt_last.audio.i_channels != id->p_encoder->fmt_in.audio.i_channels ||
1056 fmt_last.audio.i_rate != id->p_encoder->fmt_in.audio.i_rate )
1058 /* We'll have to go through fl32 first */
1059 es_format_t fmt_out = id->p_encoder->fmt_in;
1060 fmt_out.i_codec = fmt_out.audio.i_format = VLC_FOURCC('f','l','3','2');
1062 id->pp_filter[id->i_filter] =
1063 transcode_audio_filter_new( p_stream, id, &fmt_last, &fmt_out );
1065 if( id->pp_filter[id->i_filter] ) id->i_filter++;
1070 if( fmt_last.audio.i_channels !=
1071 id->p_encoder->fmt_in.audio.i_channels ||
1072 fmt_last.audio.i_rate != id->p_encoder->fmt_in.audio.i_rate ||
1073 fmt_last.i_codec != id->p_encoder->fmt_in.i_codec )
1075 id->pp_filter[id->i_filter] =
1076 transcode_audio_filter_new( p_stream, id, &fmt_last,
1077 &id->p_encoder->fmt_in );
1079 if( id->pp_filter[id->i_filter] ) id->i_filter++;
1084 /* Final checks to see if conversions were successful */
1085 if( fmt_last.i_codec != id->p_encoder->fmt_in.i_codec )
1087 msg_Err( p_stream, "no audio filter found (%4.4s->%4.4s)",
1088 (char *)&fmt_last.i_codec,
1089 (char *)&id->p_encoder->fmt_in.i_codec );
1090 transcode_audio_close( p_stream, id );
1091 return VLC_EGENERIC;
1094 if( fmt_last.audio.i_channels != id->p_encoder->fmt_in.audio.i_channels )
1096 msg_Err( p_stream, "no audio filter found for mixing from"
1097 " %i to %i channels", fmt_last.audio.i_channels,
1098 id->p_encoder->fmt_in.audio.i_channels );
1100 /* FIXME : this might work, but only if the encoder is restarted */
1101 id->p_encoder->fmt_in.audio.i_channels = fmt_last.audio.i_channels;
1102 id->p_encoder->fmt_out.audio.i_channels = fmt_last.audio.i_channels;
1104 id->p_encoder->fmt_in.audio.i_physical_channels =
1105 id->p_encoder->fmt_in.audio.i_original_channels =
1106 fmt_last.audio.i_physical_channels;
1107 id->p_encoder->fmt_out.audio.i_physical_channels =
1108 id->p_encoder->fmt_out.audio.i_original_channels =
1109 fmt_last.audio.i_physical_channels;
1111 transcode_audio_close( p_stream, id );
1112 return VLC_EGENERIC;
1116 if( fmt_last.audio.i_rate != id->p_encoder->fmt_in.audio.i_rate )
1118 msg_Err( p_stream, "no audio filter found for resampling from"
1119 " %iHz to %iHz", fmt_last.audio.i_rate,
1120 id->p_encoder->fmt_in.audio.i_rate );
1122 /* FIXME : this might work, but only if the encoder is restarted */
1123 id->p_encoder->fmt_in.audio.i_rate = fmt_last.audio.i_rate;
1124 id->p_encoder->fmt_out.audio.i_rate = fmt_last.audio.i_rate;
1126 transcode_audio_close( p_stream, id );
1127 return VLC_EGENERIC;
1131 /* FIXME: Hack for mp3 transcoding support */
1132 if( id->p_encoder->fmt_out.i_codec == VLC_FOURCC( 'm','p','3',' ' ) )
1133 id->p_encoder->fmt_out.i_codec = VLC_FOURCC( 'm','p','g','a' );
1138 static void transcode_audio_close( sout_stream_t *p_stream,
1139 sout_stream_id_t *id )
1144 if( id->p_decoder->p_module )
1145 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1146 id->p_decoder->p_module = 0;
1149 if( id->p_encoder->p_module )
1150 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1151 id->p_encoder->p_module = 0;
1154 for( i = 0; i < id->i_filter; i++ )
1156 vlc_object_detach( id->pp_filter[i] );
1157 if( id->pp_filter[i]->p_module )
1158 module_Unneed( id->pp_filter[i], id->pp_filter[i]->p_module );
1159 vlc_object_destroy( id->pp_filter[i] );
1163 static int transcode_audio_process( sout_stream_t *p_stream,
1164 sout_stream_id_t *id,
1165 block_t *in, block_t **out )
1167 sout_stream_sys_t *p_sys = p_stream->p_sys;
1168 aout_buffer_t *p_audio_buf;
1169 block_t *p_block, *p_audio_block;
1173 while( (p_audio_buf = id->p_decoder->pf_decode_audio( id->p_decoder,
1176 if( p_sys->b_master_sync )
1178 mtime_t i_dts = date_Get( &id->interpolated_pts ) + 1;
1179 p_sys->i_master_drift = p_audio_buf->start_date - i_dts;
1180 date_Increment( &id->interpolated_pts, p_audio_buf->i_nb_samples );
1181 p_audio_buf->start_date -= p_sys->i_master_drift;
1182 p_audio_buf->end_date -= p_sys->i_master_drift;
1185 p_audio_block = p_audio_buf->p_sys;
1186 p_audio_block->i_buffer = p_audio_buf->i_nb_bytes;
1187 p_audio_block->i_dts = p_audio_block->i_pts =
1188 p_audio_buf->start_date;
1189 p_audio_block->i_length = p_audio_buf->end_date -
1190 p_audio_buf->start_date;
1191 p_audio_block->i_samples = p_audio_buf->i_nb_samples;
1193 /* Run filter chain */
1194 for( i = 0; i < id->i_filter; i++ )
1197 id->pp_filter[i]->pf_audio_filter( id->pp_filter[i],
1201 p_audio_buf->p_buffer = p_audio_block->p_buffer;
1202 p_audio_buf->i_nb_bytes = p_audio_block->i_buffer;
1203 p_audio_buf->i_nb_samples = p_audio_block->i_samples;
1204 p_audio_buf->start_date = p_audio_block->i_dts;
1205 p_audio_buf->end_date = p_audio_block->i_dts + p_audio_block->i_length;
1207 p_block = id->p_encoder->pf_encode_audio( id->p_encoder, p_audio_buf );
1208 block_ChainAppend( out, p_block );
1209 block_Release( p_audio_block );
1210 free( p_audio_buf );
1216 static void audio_release_buffer( aout_buffer_t *p_buffer )
1218 if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1219 if( p_buffer ) free( p_buffer );
1222 static aout_buffer_t *audio_new_buffer( decoder_t *p_dec, int i_samples )
1224 aout_buffer_t *p_buffer;
1228 if( p_dec->fmt_out.audio.i_bitspersample )
1230 i_size = i_samples * p_dec->fmt_out.audio.i_bitspersample / 8 *
1231 p_dec->fmt_out.audio.i_channels;
1233 else if( p_dec->fmt_out.audio.i_bytes_per_frame &&
1234 p_dec->fmt_out.audio.i_frame_length )
1236 i_size = i_samples * p_dec->fmt_out.audio.i_bytes_per_frame /
1237 p_dec->fmt_out.audio.i_frame_length;
1241 i_size = i_samples * 4 * p_dec->fmt_out.audio.i_channels;
1244 p_buffer = malloc( sizeof(aout_buffer_t) );
1245 p_buffer->pf_release = audio_release_buffer;
1246 p_buffer->p_sys = p_block = block_New( p_dec, i_size );
1248 p_buffer->p_buffer = p_block->p_buffer;
1249 p_buffer->i_size = p_buffer->i_nb_bytes = p_block->i_buffer;
1250 p_buffer->i_nb_samples = i_samples;
1251 p_block->i_samples = i_samples;
1256 static void audio_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1258 if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1259 if( p_buffer ) free( p_buffer );
1265 static int transcode_video_new( sout_stream_t *p_stream, sout_stream_id_t *id )
1267 sout_stream_sys_t *p_sys = p_stream->p_sys;
1274 /* Initialization of decoder structures */
1275 id->p_decoder->fmt_out = id->p_decoder->fmt_in;
1276 id->p_decoder->fmt_out.i_extra = 0;
1277 id->p_decoder->fmt_out.p_extra = 0;
1278 id->p_decoder->pf_decode_video = 0;
1279 id->p_decoder->pf_vout_buffer_new = video_new_buffer_decoder;
1280 id->p_decoder->pf_vout_buffer_del = video_del_buffer_decoder;
1281 id->p_decoder->pf_picture_link = video_link_picture_decoder;
1282 id->p_decoder->pf_picture_unlink = video_unlink_picture_decoder;
1283 id->p_decoder->p_owner = malloc( sizeof(decoder_owner_sys_t) );
1284 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1285 id->p_decoder->p_owner->pp_pics[i] = 0;
1286 id->p_decoder->p_owner->p_sys = p_sys;
1287 //id->p_decoder->p_cfg = p_sys->p_video_cfg;
1289 id->p_decoder->p_module =
1290 module_Need( id->p_decoder, "decoder", "$codec", 0 );
1292 if( !id->p_decoder->p_module )
1294 msg_Err( p_stream, "cannot find decoder" );
1295 return VLC_EGENERIC;
1300 * Because some info about the decoded input will only be available
1301 * once the first frame is decoded, we actually only test the availability
1302 * of the encoder here.
1305 /* Initialization of encoder format structures */
1306 es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1307 id->p_decoder->fmt_out.i_codec );
1308 id->p_encoder->fmt_in.video.i_chroma = id->p_decoder->fmt_out.i_codec;
1310 /* The dimensions will be set properly later on.
1311 * Just put sensible values so we can test an encoder is available. */
1312 id->p_encoder->fmt_in.video.i_width =
1313 id->p_encoder->fmt_out.video.i_width ?
1314 id->p_encoder->fmt_out.video.i_width :
1315 id->p_decoder->fmt_in.video.i_width ?
1316 id->p_decoder->fmt_in.video.i_width : 16;
1317 id->p_encoder->fmt_in.video.i_height =
1318 id->p_encoder->fmt_out.video.i_height ?
1319 id->p_encoder->fmt_out.video.i_height :
1320 id->p_decoder->fmt_in.video.i_height ?
1321 id->p_decoder->fmt_in.video.i_height : 16;
1322 id->p_encoder->fmt_in.video.i_frame_rate = 25;
1323 id->p_encoder->fmt_in.video.i_frame_rate_base = 1;
1325 id->p_encoder->i_threads = p_sys->i_threads;
1326 id->p_encoder->p_cfg = p_sys->p_video_cfg;
1328 id->p_encoder->p_module =
1329 module_Need( id->p_encoder, "encoder", p_sys->psz_venc, VLC_TRUE );
1330 if( !id->p_encoder->p_module )
1332 msg_Err( p_stream, "cannot find encoder" );
1333 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1334 id->p_decoder->p_module = 0;
1335 return VLC_EGENERIC;
1338 /* Close the encoder.
1339 * We'll open it only when we have the first frame. */
1340 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1341 id->p_encoder->p_module = NULL;
1343 if( p_sys->i_threads >= 1 )
1345 p_sys->id_video = id;
1346 vlc_mutex_init( p_stream, &p_sys->lock_out );
1347 vlc_cond_init( p_stream, &p_sys->cond );
1348 memset( p_sys->pp_pics, 0, sizeof(p_sys->pp_pics) );
1349 p_sys->i_first_pic = 0;
1350 p_sys->i_last_pic = 0;
1351 p_sys->p_buffers = NULL;
1352 p_sys->b_die = p_sys->b_error = 0;
1353 if( vlc_thread_create( p_sys, "encoder", EncoderThread,
1354 VLC_THREAD_PRIORITY_VIDEO, VLC_FALSE ) )
1356 msg_Err( p_stream, "cannot spawn encoder thread" );
1357 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1358 id->p_decoder->p_module = 0;
1359 return VLC_EGENERIC;
1363 date_Set( &id->interpolated_pts, 0 );
1368 static int transcode_video_encoder_open( sout_stream_t *p_stream,
1369 sout_stream_id_t *id )
1371 sout_stream_sys_t *p_sys = p_stream->p_sys;
1373 /* Hack because of the copy packetizer which can fail to detect the
1374 * proper size (which forces us to wait until the 1st frame
1376 int i_width = id->p_decoder->fmt_out.video.i_width -
1377 p_sys->i_crop_left - p_sys->i_crop_right;
1378 int i_height = id->p_decoder->fmt_out.video.i_height -
1379 p_sys->i_crop_top - p_sys->i_crop_bottom;
1381 if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1382 id->p_encoder->fmt_out.video.i_height <= 0 && p_sys->f_scale )
1384 /* Apply the scaling */
1385 id->p_encoder->fmt_out.video.i_width = i_width * p_sys->f_scale;
1386 id->p_encoder->fmt_out.video.i_height = i_height * p_sys->f_scale;
1388 else if( id->p_encoder->fmt_out.video.i_width > 0 &&
1389 id->p_encoder->fmt_out.video.i_height <= 0 )
1391 id->p_encoder->fmt_out.video.i_height =
1392 id->p_encoder->fmt_out.video.i_width / (double)i_width * i_height;
1394 else if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1395 id->p_encoder->fmt_out.video.i_height > 0 )
1397 id->p_encoder->fmt_out.video.i_width =
1398 id->p_encoder->fmt_out.video.i_height / (double)i_height * i_width;
1401 /* Make sure the size is at least a multiple of 2 */
1402 id->p_encoder->fmt_out.video.i_width =
1403 (id->p_encoder->fmt_out.video.i_width + 1) >> 1 << 1;
1404 id->p_encoder->fmt_out.video.i_height =
1405 (id->p_encoder->fmt_out.video.i_height + 1) >> 1 << 1;
1407 id->p_encoder->fmt_in.video.i_width =
1408 id->p_encoder->fmt_out.video.i_width;
1409 id->p_encoder->fmt_in.video.i_height =
1410 id->p_encoder->fmt_out.video.i_height;
1412 if( !id->p_encoder->fmt_out.video.i_frame_rate ||
1413 !id->p_encoder->fmt_out.video.i_frame_rate_base )
1415 if( id->p_decoder->fmt_out.video.i_frame_rate &&
1416 id->p_decoder->fmt_out.video.i_frame_rate_base )
1418 id->p_encoder->fmt_out.video.i_frame_rate =
1419 id->p_decoder->fmt_out.video.i_frame_rate;
1420 id->p_encoder->fmt_out.video.i_frame_rate_base =
1421 id->p_decoder->fmt_out.video.i_frame_rate_base;
1425 /* Pick a sensible default value */
1426 id->p_encoder->fmt_out.video.i_frame_rate = 25;
1427 id->p_encoder->fmt_out.video.i_frame_rate_base = 1;
1431 id->p_encoder->fmt_in.video.i_frame_rate =
1432 id->p_encoder->fmt_out.video.i_frame_rate;
1433 id->p_encoder->fmt_in.video.i_frame_rate_base =
1434 id->p_encoder->fmt_out.video.i_frame_rate_base;
1436 date_Init( &id->interpolated_pts,
1437 id->p_encoder->fmt_out.video.i_frame_rate,
1438 id->p_encoder->fmt_out.video.i_frame_rate_base );
1440 /* Check whether a particular aspect ratio was requested */
1441 if( !id->p_encoder->fmt_out.video.i_aspect )
1443 id->p_encoder->fmt_out.video.i_aspect =
1444 id->p_decoder->fmt_out.video.i_aspect;
1446 id->p_encoder->fmt_in.video.i_aspect =
1447 id->p_encoder->fmt_out.video.i_aspect;
1449 id->p_encoder->p_module =
1450 module_Need( id->p_encoder, "encoder", p_sys->psz_venc, VLC_TRUE );
1451 if( !id->p_encoder->p_module )
1453 msg_Err( p_stream, "cannot find encoder" );
1454 return VLC_EGENERIC;
1457 id->p_encoder->fmt_in.video.i_chroma = id->p_encoder->fmt_in.i_codec;
1459 /* Hack for mp2v/mp1v transcoding support */
1460 if( id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','1','v') ||
1461 id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','2','v') )
1463 id->p_encoder->fmt_out.i_codec = VLC_FOURCC('m','p','g','v');
1466 id->id = p_stream->p_sys->p_out->pf_add( p_stream->p_sys->p_out,
1467 &id->p_encoder->fmt_out );
1470 msg_Err( p_stream, "cannot add this stream" );
1471 return VLC_EGENERIC;
1477 static void transcode_video_close( sout_stream_t *p_stream,
1478 sout_stream_id_t *id )
1482 if( p_stream->p_sys->i_threads >= 1 )
1484 vlc_mutex_lock( &p_stream->p_sys->lock_out );
1485 p_stream->p_sys->b_die = 1;
1486 vlc_cond_signal( &p_stream->p_sys->cond );
1487 vlc_mutex_unlock( &p_stream->p_sys->lock_out );
1488 vlc_thread_join( p_stream->p_sys );
1489 vlc_mutex_destroy( &p_stream->p_sys->lock_out );
1490 vlc_cond_destroy( &p_stream->p_sys->cond );
1494 if( id->p_decoder->p_module )
1495 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1497 if( id->p_decoder->p_owner )
1499 /* Clean-up pictures ring buffer */
1500 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1502 if( id->p_decoder->p_owner->pp_pics[i] )
1503 video_del_buffer( VLC_OBJECT(id->p_decoder),
1504 id->p_decoder->p_owner->pp_pics[i] );
1506 free( id->p_decoder->p_owner );
1510 if( id->p_encoder->p_module )
1511 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1514 for( i = 0; i < id->i_filter; i++ )
1516 vlc_object_detach( id->pp_filter[i] );
1517 if( id->pp_filter[i]->p_module )
1518 module_Unneed( id->pp_filter[i], id->pp_filter[i]->p_module );
1520 /* Clean-up pictures ring buffer */
1521 for( j = 0; j < PICTURE_RING_SIZE; j++ )
1523 if( id->pp_filter[i]->p_owner->pp_pics[j] )
1524 video_del_buffer( VLC_OBJECT(id->pp_filter[i]),
1525 id->pp_filter[i]->p_owner->pp_pics[j] );
1527 free( id->pp_filter[i]->p_owner );
1529 vlc_object_destroy( id->pp_filter[i] );
1533 static int transcode_video_process( sout_stream_t *p_stream,
1534 sout_stream_id_t *id,
1535 block_t *in, block_t **out )
1537 sout_stream_sys_t *p_sys = p_stream->p_sys;
1538 int i_duplicate = 1, i;
1542 while( (p_pic = id->p_decoder->pf_decode_video( id->p_decoder, &in )) )
1544 subpicture_t *p_subpic = 0;
1546 if( p_stream->p_sout->i_out_pace_nocontrol && p_sys->b_hurry_up )
1548 mtime_t current_date = mdate();
1549 if( current_date + 50000 > p_pic->date )
1551 msg_Dbg( p_stream, "late picture skipped ("I64Fd")",
1552 current_date + 50000 - p_pic->date );
1553 p_pic->pf_release( p_pic );
1558 if( p_sys->b_master_sync )
1560 mtime_t i_video_drift;
1561 mtime_t i_master_drift = p_sys->i_master_drift;
1564 if( !i_master_drift )
1566 /* No audio track ? */
1567 p_sys->i_master_drift = i_master_drift = p_pic->date;
1570 i_pts = date_Get( &id->interpolated_pts ) + 1;
1571 i_video_drift = p_pic->date - i_pts;
1574 /* Set the pts of the frame being encoded */
1575 p_pic->date = i_pts;
1577 if( i_video_drift < i_master_drift - 50000 )
1580 msg_Dbg( p_stream, "dropping frame (%i)",
1581 (int)(i_video_drift - i_master_drift) );
1583 p_pic->pf_release( p_pic );
1586 else if( i_video_drift > i_master_drift + 50000 )
1589 msg_Dbg( p_stream, "adding frame (%i)",
1590 (int)(i_video_drift - i_master_drift) );
1596 if( !id->p_encoder->p_module )
1598 if( transcode_video_encoder_open( p_stream, id ) != VLC_SUCCESS )
1600 p_pic->pf_release( p_pic );
1601 transcode_video_close( p_stream, id );
1602 id->b_transcode = VLC_FALSE;
1603 return VLC_EGENERIC;
1607 if( p_stream->p_sys->b_deinterlace )
1609 id->pp_filter[id->i_filter] =
1610 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1611 vlc_object_attach( id->pp_filter[id->i_filter], p_stream );
1613 id->pp_filter[id->i_filter]->pf_vout_buffer_new =
1614 video_new_buffer_filter;
1615 id->pp_filter[id->i_filter]->pf_vout_buffer_del =
1616 video_del_buffer_filter;
1618 id->pp_filter[id->i_filter]->fmt_in = id->p_decoder->fmt_out;
1619 id->pp_filter[id->i_filter]->fmt_out = id->p_decoder->fmt_out;
1620 id->pp_filter[id->i_filter]->p_cfg = p_sys->p_deinterlace_cfg;
1621 id->pp_filter[id->i_filter]->p_module =
1622 module_Need( id->pp_filter[id->i_filter],
1623 "video filter2", p_sys->psz_deinterlace, 0 );
1624 if( id->pp_filter[id->i_filter]->p_module )
1626 id->pp_filter[id->i_filter]->p_owner =
1627 malloc( sizeof(filter_owner_sys_t) );
1628 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1629 id->pp_filter[id->i_filter]->p_owner->pp_pics[i] = 0;
1630 id->pp_filter[id->i_filter]->p_owner->p_sys = p_sys;
1636 msg_Dbg( p_stream, "no video filter found" );
1637 vlc_object_detach( id->pp_filter[id->i_filter] );
1638 vlc_object_destroy( id->pp_filter[id->i_filter] );
1642 /* Check if we need a filter for chroma conversion or resizing */
1643 if( id->p_decoder->fmt_out.video.i_chroma !=
1644 id->p_encoder->fmt_in.video.i_chroma ||
1645 id->p_decoder->fmt_out.video.i_width !=
1646 id->p_encoder->fmt_out.video.i_width ||
1647 id->p_decoder->fmt_out.video.i_height !=
1648 id->p_encoder->fmt_out.video.i_height ||
1649 p_sys->i_crop_top > 0 || p_sys->i_crop_bottom > 0 ||
1650 p_sys->i_crop_left > 0 || p_sys->i_crop_right > 0 )
1652 id->pp_filter[id->i_filter] =
1653 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1654 vlc_object_attach( id->pp_filter[id->i_filter], p_stream );
1656 id->pp_filter[id->i_filter]->pf_vout_buffer_new =
1657 video_new_buffer_filter;
1658 id->pp_filter[id->i_filter]->pf_vout_buffer_del =
1659 video_del_buffer_filter;
1661 id->pp_filter[id->i_filter]->fmt_in = id->p_decoder->fmt_out;
1662 id->pp_filter[id->i_filter]->fmt_out = id->p_encoder->fmt_in;
1663 id->pp_filter[id->i_filter]->p_cfg = NULL;
1664 id->pp_filter[id->i_filter]->p_module =
1665 module_Need( id->pp_filter[id->i_filter],
1666 "video filter2", 0, 0 );
1667 if( id->pp_filter[id->i_filter]->p_module )
1669 id->pp_filter[id->i_filter]->p_owner =
1670 malloc( sizeof(filter_owner_sys_t) );
1671 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1672 id->pp_filter[id->i_filter]->p_owner->pp_pics[i] = 0;
1673 id->pp_filter[id->i_filter]->p_owner->p_sys = p_sys;
1679 msg_Dbg( p_stream, "no video filter found" );
1680 vlc_object_detach( id->pp_filter[id->i_filter] );
1681 vlc_object_destroy( id->pp_filter[id->i_filter] );
1683 p_pic->pf_release( p_pic );
1684 transcode_video_close( p_stream, id );
1685 id->b_transcode = VLC_FALSE;
1686 return VLC_EGENERIC;
1691 /* Run filter chain */
1692 for( i = 0; i < id->i_filter; i++ )
1694 p_pic = id->pp_filter[i]->pf_video_filter(id->pp_filter[i], p_pic);
1701 /* Check if we have a subpicture to overlay */
1704 p_subpic = spu_SortSubpictures( p_sys->p_spu, p_pic->date );
1705 /* TODO: get another pic */
1708 /* Overlay subpicture */
1711 int i_scale_width, i_scale_height;
1712 video_format_t *p_fmt;
1714 i_scale_width = id->p_encoder->fmt_in.video.i_width * 1000 /
1715 id->p_decoder->fmt_out.video.i_width;
1716 i_scale_height = id->p_encoder->fmt_in.video.i_height * 1000 /
1717 id->p_decoder->fmt_out.video.i_height;
1719 if( p_pic->i_refcount && !id->i_filter )
1721 /* We can't modify the picture, we need to duplicate it */
1722 picture_t *p_tmp = video_new_buffer_decoder( id->p_decoder );
1725 vout_CopyPicture( p_stream, p_tmp, p_pic );
1726 p_pic->pf_release( p_pic );
1732 p_fmt = &id->pp_filter[id->i_filter -1]->fmt_out.video;
1734 p_fmt = &id->p_decoder->fmt_out.video;
1736 /* FIXME (shouldn't have to be done here) */
1737 p_fmt->i_sar_num = p_fmt->i_aspect *
1738 p_fmt->i_height / p_fmt->i_width;
1739 p_fmt->i_sar_den = VOUT_ASPECT_FACTOR;
1741 spu_RenderSubpictures( p_sys->p_spu, p_fmt, p_pic, p_pic, p_subpic,
1742 i_scale_width, i_scale_height );
1745 if( p_sys->i_threads >= 1 )
1747 vlc_mutex_lock( &p_sys->lock_out );
1748 p_sys->pp_pics[p_sys->i_last_pic++] = p_pic;
1749 p_sys->i_last_pic %= PICTURE_RING_SIZE;
1750 *out = p_sys->p_buffers;
1751 p_sys->p_buffers = NULL;
1752 vlc_cond_signal( &p_sys->cond );
1753 vlc_mutex_unlock( &p_sys->lock_out );
1758 p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
1759 block_ChainAppend( out, p_block );
1761 if( p_sys->b_master_sync )
1762 date_Increment( &id->interpolated_pts, 1 );
1764 if( p_sys->b_master_sync && i_duplicate > 1 )
1766 mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
1767 date_Increment( &id->interpolated_pts, 1 );
1768 p_pic->date = i_pts;
1769 p_block = id->p_encoder->pf_encode_video(id->p_encoder, p_pic);
1770 block_ChainAppend( out, p_block );
1773 p_pic->pf_release( p_pic );
1780 static int EncoderThread( sout_stream_sys_t *p_sys )
1782 sout_stream_id_t *id = p_sys->id_video;
1785 while( !p_sys->b_die && !p_sys->b_error )
1789 vlc_mutex_lock( &p_sys->lock_out );
1790 while( p_sys->i_last_pic == p_sys->i_first_pic )
1792 vlc_cond_wait( &p_sys->cond, &p_sys->lock_out );
1793 if( p_sys->b_die || p_sys->b_error ) break;
1795 if( p_sys->b_die || p_sys->b_error )
1797 vlc_mutex_unlock( &p_sys->lock_out );
1801 p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
1802 p_sys->i_first_pic %= PICTURE_RING_SIZE;
1803 vlc_mutex_unlock( &p_sys->lock_out );
1805 p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
1806 vlc_mutex_lock( &p_sys->lock_out );
1807 block_ChainAppend( &p_sys->p_buffers, p_block );
1809 if( p_sys->b_master_sync )
1810 date_Increment( &id->interpolated_pts, 1 );
1813 if( p_sys->b_master_sync && i_duplicate > 1 )
1815 mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
1816 date_Increment( &id->interpolated_pts, 1 );
1817 p_pic->date = i_pts;
1818 p_block = id->p_encoder->pf_encode_video(id->p_encoder, p_pic);
1819 block_ChainAppend( &p_sys->p_buffers, p_block );
1822 vlc_mutex_unlock( &p_sys->lock_out );
1824 p_pic->pf_release( p_pic );
1827 while( p_sys->i_last_pic != p_sys->i_first_pic )
1829 p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
1830 p_sys->i_first_pic %= PICTURE_RING_SIZE;
1832 p_pic->pf_release( p_pic );
1835 block_ChainRelease( p_sys->p_buffers );
1840 struct picture_sys_t
1842 vlc_object_t *p_owner;
1845 static void video_release_buffer( picture_t *p_pic )
1847 if( p_pic && !p_pic->i_refcount && p_pic->pf_release && p_pic->p_sys )
1849 video_del_buffer_decoder( (decoder_t *)p_pic->p_sys->p_owner, p_pic );
1851 else if( p_pic && p_pic->i_refcount > 0 ) p_pic->i_refcount--;
1854 static picture_t *video_new_buffer( vlc_object_t *p_this, picture_t **pp_ring,
1855 sout_stream_sys_t *p_sys )
1857 decoder_t *p_dec = (decoder_t *)p_this;
1861 /* Find an empty space in the picture ring buffer */
1862 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1864 if( pp_ring[i] != 0 && pp_ring[i]->i_status == DESTROYED_PICTURE )
1866 pp_ring[i]->i_status = RESERVED_PICTURE;
1870 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1872 if( pp_ring[i] == 0 ) break;
1875 if( i == PICTURE_RING_SIZE && p_sys->i_threads >= 1 )
1877 int i_first_pic = p_sys->i_first_pic;
1879 if( p_sys->i_first_pic != p_sys->i_last_pic )
1881 /* Encoder still has stuff to encode, wait to clear-up the list */
1882 while( p_sys->i_first_pic == i_first_pic )
1886 /* Find an empty space in the picture ring buffer */
1887 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1889 if( pp_ring[i] != 0 && pp_ring[i]->i_status == DESTROYED_PICTURE )
1891 pp_ring[i]->i_status = RESERVED_PICTURE;
1895 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1897 if( pp_ring[i] == 0 ) break;
1901 if( i == PICTURE_RING_SIZE )
1903 msg_Err( p_this, "decoder/filter is leaking pictures, "
1904 "resetting its ring buffer" );
1906 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1908 pp_ring[i]->pf_release( pp_ring[i] );
1914 p_pic = malloc( sizeof(picture_t) );
1915 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
1916 vout_AllocatePicture( VLC_OBJECT(p_dec), p_pic,
1917 p_dec->fmt_out.video.i_chroma,
1918 p_dec->fmt_out.video.i_width,
1919 p_dec->fmt_out.video.i_height,
1920 p_dec->fmt_out.video.i_aspect );
1922 if( !p_pic->i_planes )
1928 p_pic->pf_release = video_release_buffer;
1929 p_pic->p_sys = malloc( sizeof(picture_sys_t) );
1930 p_pic->p_sys->p_owner = p_this;
1931 p_pic->i_status = RESERVED_PICTURE;
1938 static picture_t *video_new_buffer_decoder( decoder_t *p_dec )
1940 return video_new_buffer( VLC_OBJECT(p_dec),
1941 p_dec->p_owner->pp_pics, p_dec->p_owner->p_sys );
1944 static picture_t *video_new_buffer_filter( filter_t *p_filter )
1946 return video_new_buffer( VLC_OBJECT(p_filter),
1947 p_filter->p_owner->pp_pics,
1948 p_filter->p_owner->p_sys );
1951 static void video_del_buffer( vlc_object_t *p_this, picture_t *p_pic )
1953 if( p_pic && p_pic->p_data_orig ) free( p_pic->p_data_orig );
1954 if( p_pic && p_pic->p_sys ) free( p_pic->p_sys );
1955 if( p_pic ) free( p_pic );
1958 static void video_del_buffer_decoder( decoder_t *p_decoder, picture_t *p_pic )
1960 p_pic->i_refcount = 0;
1961 p_pic->i_status = DESTROYED_PICTURE;
1964 static void video_del_buffer_filter( filter_t *p_filter, picture_t *p_pic )
1966 p_pic->i_refcount = 0;
1967 p_pic->i_status = DESTROYED_PICTURE;
1970 static void video_link_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
1972 p_pic->i_refcount++;
1975 static void video_unlink_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
1977 video_release_buffer( p_pic );
1983 static subpicture_t *spu_new_buffer( decoder_t * );
1984 static void spu_del_buffer( decoder_t *, subpicture_t * );
1986 static int transcode_spu_new( sout_stream_t *p_stream, sout_stream_id_t *id )
1988 sout_stream_sys_t *p_sys = p_stream->p_sys;
1994 /* Initialization of decoder structures */
1995 id->p_decoder->pf_spu_buffer_new = spu_new_buffer;
1996 id->p_decoder->pf_spu_buffer_del = spu_del_buffer;
1997 id->p_decoder->p_owner = (decoder_owner_sys_t *)p_stream;
1998 //id->p_decoder->p_cfg = p_sys->p_spu_cfg;
2000 id->p_decoder->p_module =
2001 module_Need( id->p_decoder, "decoder", "$codec", 0 );
2003 if( !id->p_decoder->p_module )
2005 msg_Err( p_stream, "cannot find decoder" );
2006 return VLC_EGENERIC;
2009 if( !p_sys->b_soverlay )
2015 /* Initialization of encoder format structures */
2016 es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
2017 id->p_decoder->fmt_in.i_codec );
2019 id->p_encoder->p_cfg = p_sys->p_spu_cfg;
2021 id->p_encoder->p_module =
2022 module_Need( id->p_encoder, "encoder", p_sys->psz_senc, VLC_TRUE );
2024 if( !id->p_encoder->p_module )
2026 module_Unneed( id->p_decoder, id->p_decoder->p_module );
2027 msg_Err( p_stream, "cannot find encoder" );
2028 return VLC_EGENERIC;
2034 p_sys->p_spu = spu_Create( p_stream );
2035 spu_Init( p_sys->p_spu );
2041 static void transcode_spu_close( sout_stream_t *p_stream, sout_stream_id_t *id)
2044 if( id->p_decoder->p_module )
2045 module_Unneed( id->p_decoder, id->p_decoder->p_module );
2048 if( id->p_encoder->p_module )
2049 module_Unneed( id->p_encoder, id->p_encoder->p_module );
2052 static int transcode_spu_process( sout_stream_t *p_stream,
2053 sout_stream_id_t *id,
2054 block_t *in, block_t **out )
2056 sout_stream_sys_t *p_sys = p_stream->p_sys;
2057 subpicture_t *p_subpic;
2060 p_subpic = id->p_decoder->pf_decode_sub( id->p_decoder, &in );
2061 if( !p_subpic ) return VLC_EGENERIC;
2063 if( p_sys->b_master_sync && p_sys->i_master_drift )
2065 p_subpic->i_start -= p_sys->i_master_drift;
2066 if( p_subpic->i_stop ) p_subpic->i_stop -= p_sys->i_master_drift;
2069 if( p_sys->b_soverlay )
2071 spu_DisplaySubpicture( p_sys->p_spu, p_subpic );
2077 p_block = id->p_encoder->pf_encode_sub( id->p_encoder, p_subpic );
2078 spu_del_buffer( id->p_decoder, p_subpic );
2082 block_ChainAppend( out, p_block );
2087 return VLC_EGENERIC;
2090 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2092 sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
2093 return spu_CreateSubpicture( p_stream->p_sys->p_spu );
2096 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2098 sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
2099 spu_DestroySubpicture( p_stream->p_sys->p_spu, p_subpic );