1 /*****************************************************************************
2 * transcode.c: transcoding stream output module
3 *****************************************************************************
4 * Copyright (C) 2003-2004 VideoLAN
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
32 #include <vlc/input.h>
35 #include <vlc/decoder.h>
36 #include "vlc_filter.h"
39 /*****************************************************************************
41 *****************************************************************************/
42 #define VENC_TEXT N_("Video encoder")
43 #define VENC_LONGTEXT N_( \
44 "Allows you to specify the video encoder to use and its associated " \
46 #define VCODEC_TEXT N_("Destination video codec")
47 #define VCODEC_LONGTEXT N_( \
48 "Allows you to specify the destination video codec used for the " \
50 #define VB_TEXT N_("Video bitrate")
51 #define VB_LONGTEXT N_( \
52 "Allows you to specify the video bitrate used for the streaming " \
54 #define SCALE_TEXT N_("Video scaling")
55 #define SCALE_LONGTEXT N_( \
56 "Allows you to scale the video before encoding." )
57 #define FPS_TEXT N_("Video frame-rate")
58 #define FPS_LONGTEXT N_( \
59 "Allows you to specify an output frame rate for the video." )
60 #define DEINTERLACE_TEXT N_("Deinterlace video")
61 #define DEINTERLACE_LONGTEXT N_( \
62 "Allows you to deinterlace the video before encoding." )
63 #define WIDTH_TEXT N_("Video width")
64 #define WIDTH_LONGTEXT N_( \
65 "Allows you to specify the output video width." )
66 #define HEIGHT_TEXT N_("Video height")
67 #define HEIGHT_LONGTEXT N_( \
68 "Allows you to specify the output video height." )
70 #define CROPTOP_TEXT N_("Video crop top")
71 #define CROPTOP_LONGTEXT N_( \
72 "Allows you to specify the top coordinate for the video cropping." )
73 #define CROPLEFT_TEXT N_("Video crop left")
74 #define CROPLEFT_LONGTEXT N_( \
75 "Allows you to specify the left coordinate for the video cropping." )
76 #define CROPBOTTOM_TEXT N_("Video crop bottom")
77 #define CROPBOTTOM_LONGTEXT N_( \
78 "Allows you to specify the bottom coordinate for the video cropping." )
79 #define CROPRIGHT_TEXT N_("Video crop right")
80 #define CROPRIGHT_LONGTEXT N_( \
81 "Allows you to specify the right coordinate for the video cropping." )
83 #define AENC_TEXT N_("Audio encoder")
84 #define AENC_LONGTEXT N_( \
85 "Allows you to specify the audio encoder to use and its associated " \
87 #define ACODEC_TEXT N_("Destination audio codec")
88 #define ACODEC_LONGTEXT N_( \
89 "Allows you to specify the destination audio codec used for the " \
91 #define AB_TEXT N_("Audio bitrate")
92 #define AB_LONGTEXT N_( \
93 "Allows you to specify the audio bitrate used for the streaming " \
95 #define ARATE_TEXT N_("Audio sample rate")
96 #define ARATE_LONGTEXT N_( \
97 "Allows you to specify the audio sample rate used for the streaming " \
99 #define ACHANS_TEXT N_("Audio channels")
100 #define ACHANS_LONGTEXT N_( \
101 "Allows you to specify the number of audio channels used for the " \
102 "streaming output." )
104 #define SENC_TEXT N_("Subtitles encoder")
105 #define SENC_LONGTEXT N_( \
106 "Allows you to specify the subtitles encoder to use and its associated " \
108 #define SCODEC_TEXT N_("Destination subtitles codec")
109 #define SCODEC_LONGTEXT N_( \
110 "Allows you to specify the destination subtitles codec used for the " \
111 "streaming output." )
113 #define THREADS_TEXT N_("Number of threads")
114 #define THREADS_LONGTEXT N_( \
115 "Allows you to specify the number of threads used for the transcoding." )
117 #define ASYNC_TEXT N_("Synchronise on audio track")
118 #define ASYNC_LONGTEXT N_( \
119 "This option will drop/duplicate video frames to synchronise the video " \
120 "track on the audio track." )
122 static int Open ( vlc_object_t * );
123 static void Close( vlc_object_t * );
125 #define SOUT_CFG_PREFIX "sout-transcode-"
128 set_description( _("Transcode stream output") );
129 set_capability( "sout stream", 50 );
130 add_shortcut( "transcode" );
131 set_callbacks( Open, Close );
133 add_string( SOUT_CFG_PREFIX "venc", NULL, NULL, VENC_TEXT,
134 VENC_LONGTEXT, VLC_FALSE );
135 add_string( SOUT_CFG_PREFIX "vcodec", NULL, NULL, VCODEC_TEXT,
136 VCODEC_LONGTEXT, VLC_FALSE );
137 add_integer( SOUT_CFG_PREFIX "vb", 800 * 1000, NULL, VB_TEXT,
138 VB_LONGTEXT, VLC_FALSE );
139 add_float( SOUT_CFG_PREFIX "scale", 1, NULL, SCALE_TEXT,
140 SCALE_LONGTEXT, VLC_FALSE );
141 add_float( SOUT_CFG_PREFIX "fps", 0, NULL, FPS_TEXT,
142 FPS_LONGTEXT, VLC_FALSE );
143 add_bool( SOUT_CFG_PREFIX "deinterlace", 0, NULL, DEINTERLACE_TEXT,
144 DEINTERLACE_LONGTEXT, VLC_FALSE );
145 add_integer( SOUT_CFG_PREFIX "width", 0, NULL, WIDTH_TEXT,
146 WIDTH_LONGTEXT, VLC_TRUE );
147 add_integer( SOUT_CFG_PREFIX "height", 0, NULL, HEIGHT_TEXT,
148 HEIGHT_LONGTEXT, VLC_TRUE );
150 add_integer( SOUT_CFG_PREFIX "croptop", 0, NULL, CROPTOP_TEXT,
151 CROPTOP_LONGTEXT, VLC_TRUE );
152 add_integer( SOUT_CFG_PREFIX "cropleft", 0, NULL, CROPLEFT_TEXT,
153 CROPLEFT_LONGTEXT, VLC_TRUE );
154 add_integer( SOUT_CFG_PREFIX "cropbottom", 0, NULL, CROPBOTTOM_TEXT,
155 CROPBOTTOM_LONGTEXT, VLC_TRUE );
156 add_integer( SOUT_CFG_PREFIX "cropright", 0, NULL, CROPRIGHT_TEXT,
157 CROPRIGHT_LONGTEXT, VLC_TRUE );
159 add_string( SOUT_CFG_PREFIX "aenc", NULL, NULL, AENC_TEXT,
160 AENC_LONGTEXT, VLC_FALSE );
161 add_string( SOUT_CFG_PREFIX "acodec", NULL, NULL, ACODEC_TEXT,
162 ACODEC_LONGTEXT, VLC_FALSE );
163 add_integer( SOUT_CFG_PREFIX "ab", 64000, NULL, AB_TEXT,
164 AB_LONGTEXT, VLC_FALSE );
165 add_integer( SOUT_CFG_PREFIX "channels", 0, NULL, ACHANS_TEXT,
166 ACHANS_LONGTEXT, VLC_FALSE );
167 add_integer( SOUT_CFG_PREFIX "samplerate", 0, NULL, ARATE_TEXT,
168 ARATE_LONGTEXT, VLC_TRUE );
170 add_string( SOUT_CFG_PREFIX "senc", NULL, NULL, SENC_TEXT,
171 SENC_LONGTEXT, VLC_FALSE );
172 add_string( SOUT_CFG_PREFIX "scodec", NULL, NULL, SCODEC_TEXT,
173 SCODEC_LONGTEXT, VLC_FALSE );
174 add_bool( SOUT_CFG_PREFIX "soverlay", 0, NULL, SCODEC_TEXT,
175 SCODEC_LONGTEXT, VLC_FALSE );
177 add_integer( SOUT_CFG_PREFIX "threads", 0, NULL, THREADS_TEXT,
178 THREADS_LONGTEXT, VLC_TRUE );
180 add_bool( SOUT_CFG_PREFIX "audio-sync", 0, NULL, ASYNC_TEXT,
181 ASYNC_LONGTEXT, VLC_FALSE );
184 static const char *ppsz_sout_options[] = {
185 "venc", "vcodec", "vb", "croptop", "cropbottom", "cropleft", "cropright",
186 "scale", "fps", "width", "height", "deinterlace", "threads",
187 "aenc", "acodec", "ab", "samplerate", "channels",
188 "senc", "scodec", "soverlay",
192 /*****************************************************************************
193 * Exported prototypes
194 *****************************************************************************/
195 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
196 static int Del ( sout_stream_t *, sout_stream_id_t * );
197 static int Send( sout_stream_t *, sout_stream_id_t *, block_t* );
199 static int transcode_audio_new ( sout_stream_t *, sout_stream_id_t * );
200 static void transcode_audio_close ( sout_stream_t *, sout_stream_id_t * );
201 static int transcode_audio_process( sout_stream_t *, sout_stream_id_t *,
202 block_t *, block_t ** );
204 static aout_buffer_t *audio_new_buffer( decoder_t *, int );
205 static void audio_del_buffer( decoder_t *, aout_buffer_t * );
207 static int transcode_video_new ( sout_stream_t *, sout_stream_id_t * );
208 static void transcode_video_close ( sout_stream_t *, sout_stream_id_t * );
209 static int transcode_video_encoder_open( sout_stream_t *, sout_stream_id_t *);
210 static int transcode_video_process( sout_stream_t *, sout_stream_id_t *,
211 block_t *, block_t ** );
213 static void video_del_buffer( vlc_object_t *, picture_t * );
214 static picture_t *video_new_buffer_decoder( decoder_t * );
215 static void video_del_buffer_decoder( decoder_t *, picture_t * );
216 static void video_link_picture_decoder( decoder_t *, picture_t * );
217 static void video_unlink_picture_decoder( decoder_t *, picture_t * );
218 static picture_t *video_new_buffer_filter( filter_t * );
219 static void video_del_buffer_filter( filter_t *, picture_t * );
221 static int transcode_spu_new ( sout_stream_t *, sout_stream_id_t * );
222 static void transcode_spu_close ( sout_stream_t *, sout_stream_id_t * );
223 static int transcode_spu_process( sout_stream_t *, sout_stream_id_t *,
224 block_t *, block_t ** );
226 static int EncoderThread( struct sout_stream_sys_t * p_sys );
228 static int pi_channels_maps[6] =
231 AOUT_CHAN_CENTER, AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
232 AOUT_CHAN_CENTER | AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
233 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_REARLEFT
234 | AOUT_CHAN_REARRIGHT,
235 AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
236 | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
239 #define PICTURE_RING_SIZE 64
240 #define SUBPICTURE_RING_SIZE 20
242 struct sout_stream_sys_t
246 sout_stream_t *p_out;
247 sout_stream_id_t *id_video;
249 vlc_mutex_t lock_out;
251 picture_t * pp_pics[PICTURE_RING_SIZE];
252 int i_first_pic, i_last_pic;
255 vlc_fourcc_t i_acodec; /* codec audio (0 if not transcode) */
257 sout_cfg_t *p_audio_cfg;
263 vlc_fourcc_t i_vcodec; /* codec video (0 if not transcode) */
265 sout_cfg_t *p_video_cfg;
271 vlc_bool_t b_deinterlace;
280 vlc_fourcc_t i_scodec; /* codec spu (0 if not transcode) */
282 vlc_bool_t b_soverlay;
283 sout_cfg_t *p_spu_cfg;
287 vlc_bool_t b_audio_sync;
288 mtime_t i_master_drift;
291 struct decoder_owner_sys_t
293 picture_t *pp_pics[PICTURE_RING_SIZE];
295 struct filter_owner_sys_t
297 picture_t *pp_pics[PICTURE_RING_SIZE];
300 /*****************************************************************************
302 *****************************************************************************/
303 static int Open( vlc_object_t *p_this )
305 sout_stream_t *p_stream = (sout_stream_t*)p_this;
306 sout_stream_sys_t *p_sys;
309 p_sys = vlc_object_create( p_this, sizeof( sout_stream_sys_t ) );
311 p_sys->p_out = sout_StreamNew( p_stream->p_sout, p_stream->psz_next );
314 msg_Err( p_stream, "cannot create chain" );
319 p_sys->i_master_drift = 0;
321 sout_CfgParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
324 /* Audio transcoding parameters */
325 var_Get( p_stream, SOUT_CFG_PREFIX "aenc", &val );
326 p_sys->psz_aenc = NULL;
327 p_sys->p_audio_cfg = NULL;
328 if( val.psz_string && *val.psz_string )
331 psz_next = sout_CfgCreate( &p_sys->psz_aenc, &p_sys->p_audio_cfg,
333 if( psz_next ) free( psz_next );
335 if( val.psz_string ) free( val.psz_string );
337 var_Get( p_stream, SOUT_CFG_PREFIX "acodec", &val );
339 if( val.psz_string && *val.psz_string )
342 memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
343 p_sys->i_acodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
345 if( val.psz_string ) free( val.psz_string );
347 var_Get( p_stream, SOUT_CFG_PREFIX "ab", &val );
348 p_sys->i_abitrate = val.i_int;
349 if( p_sys->i_abitrate < 4000 ) p_sys->i_abitrate *= 1000;
351 var_Get( p_stream, SOUT_CFG_PREFIX "samplerate", &val );
352 p_sys->i_sample_rate = val.i_int;
354 var_Get( p_stream, SOUT_CFG_PREFIX "channels", &val );
355 p_sys->i_channels = val.i_int;
357 if( p_sys->i_acodec )
359 msg_Dbg( p_stream, "codec audio=%4.4s %dHz %d channels %dKb/s",
360 (char *)&p_sys->i_acodec, p_sys->i_sample_rate,
361 p_sys->i_channels, p_sys->i_abitrate / 1000 );
364 /* Video transcoding parameters */
365 var_Get( p_stream, SOUT_CFG_PREFIX "venc", &val );
366 p_sys->psz_venc = NULL;
367 p_sys->p_video_cfg = NULL;
368 if( val.psz_string && *val.psz_string )
371 psz_next = sout_CfgCreate( &p_sys->psz_venc, &p_sys->p_video_cfg,
373 if( psz_next ) free( psz_next );
375 if( val.psz_string ) free( val.psz_string );
377 var_Get( p_stream, SOUT_CFG_PREFIX "vcodec", &val );
379 if( val.psz_string && *val.psz_string )
382 memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
383 p_sys->i_vcodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
385 if( val.psz_string ) free( val.psz_string );
387 var_Get( p_stream, SOUT_CFG_PREFIX "vb", &val );
388 p_sys->i_vbitrate = val.i_int;
389 if( p_sys->i_vbitrate < 16000 ) p_sys->i_vbitrate *= 1000;
391 var_Get( p_stream, SOUT_CFG_PREFIX "scale", &val );
392 p_sys->f_scale = val.f_float;
394 var_Get( p_stream, SOUT_CFG_PREFIX "fps", &val );
395 p_sys->f_fps = val.f_float;
397 var_Get( p_stream, SOUT_CFG_PREFIX "width", &val );
398 p_sys->i_width = val.i_int;
400 var_Get( p_stream, SOUT_CFG_PREFIX "height", &val );
401 p_sys->i_height = val.i_int;
403 var_Get( p_stream, SOUT_CFG_PREFIX "deinterlace", &val );
404 p_sys->b_deinterlace = val.b_bool;
406 var_Get( p_stream, SOUT_CFG_PREFIX "croptop", &val );
407 p_sys->i_crop_top = val.i_int;
408 var_Get( p_stream, SOUT_CFG_PREFIX "cropbottom", &val );
409 p_sys->i_crop_bottom = val.i_int;
410 var_Get( p_stream, SOUT_CFG_PREFIX "cropleft", &val );
411 p_sys->i_crop_left = val.i_int;
412 var_Get( p_stream, SOUT_CFG_PREFIX "cropright", &val );
413 p_sys->i_crop_right = val.i_int;
415 var_Get( p_stream, SOUT_CFG_PREFIX "threads", &val );
416 p_sys->i_threads = val.i_int;
418 if( p_sys->i_vcodec )
420 msg_Dbg( p_stream, "codec video=%4.4s %dx%d scaling: %f %dkb/s",
421 (char *)&p_sys->i_vcodec, p_sys->i_width, p_sys->i_height,
422 p_sys->f_scale, p_sys->i_vbitrate / 1000 );
425 /* Subpictures transcoding parameters */
426 var_Get( p_stream, SOUT_CFG_PREFIX "senc", &val );
427 p_sys->psz_senc = NULL;
428 p_sys->p_spu_cfg = NULL;
429 if( val.psz_string && *val.psz_string )
432 psz_next = sout_CfgCreate( &p_sys->psz_senc, &p_sys->p_spu_cfg,
434 if( psz_next ) free( psz_next );
436 if( val.psz_string ) free( val.psz_string );
438 var_Get( p_stream, SOUT_CFG_PREFIX "scodec", &val );
440 if( val.psz_string && *val.psz_string )
443 memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
444 p_sys->i_scodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
446 if( val.psz_string ) free( val.psz_string );
448 if( p_sys->i_scodec )
450 msg_Dbg( p_stream, "codec spu=%4.4s", (char *)&p_sys->i_acodec );
453 var_Get( p_stream, SOUT_CFG_PREFIX "soverlay", &val );
454 p_sys->b_soverlay = val.b_bool;
457 var_Get( p_stream, SOUT_CFG_PREFIX "audio-sync", &val );
458 p_sys->b_audio_sync = val.b_bool;
459 if( p_sys->f_fps > 0 ) p_sys->b_audio_sync = VLC_TRUE;
461 p_stream->pf_add = Add;
462 p_stream->pf_del = Del;
463 p_stream->pf_send = Send;
464 p_stream->p_sys = p_sys;
469 /*****************************************************************************
471 *****************************************************************************/
472 static void Close( vlc_object_t * p_this )
474 sout_stream_t *p_stream = (sout_stream_t*)p_this;
475 sout_stream_sys_t *p_sys = p_stream->p_sys;
477 sout_StreamDelete( p_sys->p_out );
479 while( p_sys->p_audio_cfg != NULL )
481 sout_cfg_t *p_next = p_sys->p_audio_cfg->p_next;
483 if( p_sys->p_audio_cfg->psz_name )
484 free( p_sys->p_audio_cfg->psz_name );
485 if( p_sys->p_audio_cfg->psz_value )
486 free( p_sys->p_audio_cfg->psz_value );
487 free( p_sys->p_audio_cfg );
489 p_sys->p_audio_cfg = p_next;
491 if( p_sys->psz_aenc ) free( p_sys->psz_aenc );
493 while( p_sys->p_video_cfg != NULL )
495 sout_cfg_t *p_next = p_sys->p_video_cfg->p_next;
497 if( p_sys->p_video_cfg->psz_name )
498 free( p_sys->p_video_cfg->psz_name );
499 if( p_sys->p_video_cfg->psz_value )
500 free( p_sys->p_video_cfg->psz_value );
501 free( p_sys->p_video_cfg );
503 p_sys->p_video_cfg = p_next;
505 if( p_sys->psz_venc ) free( p_sys->psz_venc );
507 while( p_sys->p_spu_cfg != NULL )
509 sout_cfg_t *p_next = p_sys->p_spu_cfg->p_next;
511 if( p_sys->p_spu_cfg->psz_name )
512 free( p_sys->p_spu_cfg->psz_name );
513 if( p_sys->p_spu_cfg->psz_value )
514 free( p_sys->p_spu_cfg->psz_value );
515 free( p_sys->p_spu_cfg );
517 p_sys->p_spu_cfg = p_next;
519 if( p_sys->psz_senc ) free( p_sys->psz_senc );
521 if( p_sys->p_spu ) spu_Destroy( p_sys->p_spu );
523 vlc_object_destroy( p_sys );
526 struct sout_stream_id_t
528 vlc_fourcc_t b_transcode;
530 /* id of the out stream */
534 decoder_t *p_decoder;
537 filter_t *pp_filter[10];
541 encoder_t *p_encoder;
544 date_t interpolated_pts;
548 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
550 sout_stream_sys_t *p_sys = p_stream->p_sys;
551 sout_stream_id_t *id;
553 id = malloc( sizeof( sout_stream_id_t ) );
554 memset( id, 0, sizeof(sout_stream_id_t) );
557 id->p_decoder = NULL;
558 id->p_encoder = NULL;
560 /* Create decoder object */
561 id->p_decoder = vlc_object_create( p_stream, VLC_OBJECT_DECODER );
564 msg_Err( p_stream, "out of memory" );
567 vlc_object_attach( id->p_decoder, p_stream );
568 id->p_decoder->p_module = NULL;
569 id->p_decoder->fmt_in = *p_fmt;
570 id->p_decoder->fmt_out = *p_fmt;
571 id->p_decoder->fmt_out.i_extra = 0;
572 id->p_decoder->fmt_out.p_extra = 0;
573 id->p_decoder->b_pace_control = VLC_TRUE;
575 /* Create encoder object */
576 id->p_encoder = vlc_object_create( p_stream, VLC_OBJECT_ENCODER );
579 msg_Err( p_stream, "out of memory" );
582 vlc_object_attach( id->p_encoder, p_stream );
583 id->p_encoder->p_module = NULL;
585 /* Create destination format */
586 es_format_Init( &id->p_encoder->fmt_out, p_fmt->i_cat, 0 );
587 id->p_encoder->fmt_out.i_id = p_fmt->i_id;
588 id->p_encoder->fmt_out.i_group = p_fmt->i_group;
589 if( p_fmt->psz_language )
590 id->p_encoder->fmt_out.psz_language = strdup( p_fmt->psz_language );
592 if( p_fmt->i_cat == AUDIO_ES && (p_sys->i_acodec || p_sys->psz_aenc) )
595 "creating audio transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
596 (char*)&p_fmt->i_codec, (char*)&p_sys->i_acodec );
598 /* Complete destination format */
599 id->p_encoder->fmt_out.i_codec = p_sys->i_acodec;
600 id->p_encoder->fmt_out.audio.i_rate = p_sys->i_sample_rate > 0 ?
601 p_sys->i_sample_rate : (int)p_fmt->audio.i_rate;
602 id->p_encoder->fmt_out.audio.i_channels = p_sys->i_channels > 0 ?
603 p_sys->i_channels : p_fmt->audio.i_channels;
604 id->p_encoder->fmt_out.i_bitrate = p_sys->i_abitrate;
605 id->p_encoder->fmt_out.audio.i_bitspersample =
606 p_fmt->audio.i_bitspersample;
608 /* Build decoder -> filter -> encoder chain */
609 if( transcode_audio_new( p_stream, id ) )
611 msg_Err( p_stream, "cannot create audio chain" );
615 /* Open output stream */
616 id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
617 id->b_transcode = VLC_TRUE;
619 if( !id->id ) goto error;
621 date_Init( &id->interpolated_pts, p_fmt->audio.i_rate, 1 );
623 else if( p_fmt->i_cat == VIDEO_ES &&
624 (p_sys->i_vcodec != 0 || p_sys->psz_venc) )
627 "creating video transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
628 (char*)&p_fmt->i_codec, (char*)&p_sys->i_vcodec );
630 /* Complete destination format */
631 id->p_encoder->fmt_out.i_codec = p_sys->i_vcodec;
632 id->p_encoder->fmt_out.video.i_width = p_sys->i_width;
633 id->p_encoder->fmt_out.video.i_height = p_sys->i_height;
634 id->p_encoder->fmt_out.i_bitrate = p_sys->i_vbitrate;
636 /* Build decoder -> filter -> encoder chain */
637 if( transcode_video_new( p_stream, id ) )
639 msg_Err( p_stream, "cannot create video chain" );
643 /* Stream will be added later on because we don't know
644 * all the characteristics of the decoded stream yet */
645 id->b_transcode = VLC_TRUE;
647 if( p_sys->f_fps > 0 )
649 id->p_encoder->fmt_out.video.i_frame_rate = p_sys->f_fps * 1000;
650 id->p_encoder->fmt_out.video.i_frame_rate_base = 1000;
653 else if( p_fmt->i_cat == SPU_ES && (p_sys->i_scodec || p_sys->psz_senc) )
655 msg_Dbg( p_stream, "creating subtitles transcoding from fcc=`%4.4s' "
656 "to fcc=`%4.4s'", (char*)&p_fmt->i_codec,
657 (char*)&p_sys->i_scodec );
659 /* Complete destination format */
660 id->p_encoder->fmt_out.i_codec = p_sys->i_scodec;
662 /* build decoder -> filter -> encoder */
663 if( transcode_spu_new( p_stream, id ) )
665 msg_Err( p_stream, "cannot create subtitles chain" );
669 /* open output stream */
670 id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
671 id->b_transcode = VLC_TRUE;
673 if( !id->id ) goto error;
675 else if( p_fmt->i_cat == SPU_ES && p_sys->b_soverlay )
677 msg_Dbg( p_stream, "subtitles (fcc=`%4.4s') overlaying",
678 (char*)&p_fmt->i_codec );
680 id->b_transcode = VLC_TRUE;
682 /* Build decoder -> filter -> overlaying chain */
683 if( transcode_spu_new( p_stream, id ) )
685 msg_Err( p_stream, "cannot create subtitles chain" );
691 msg_Dbg( p_stream, "not transcoding a stream (fcc=`%4.4s')",
692 (char*)&p_fmt->i_codec );
693 id->id = p_sys->p_out->pf_add( p_sys->p_out, p_fmt );
694 id->b_transcode = VLC_FALSE;
696 if( !id->id ) goto error;
704 vlc_object_detach( id->p_decoder );
705 vlc_object_destroy( id->p_decoder );
710 vlc_object_detach( id->p_encoder );
711 vlc_object_destroy( id->p_encoder );
718 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
720 sout_stream_sys_t *p_sys = p_stream->p_sys;
722 if( id->b_transcode )
724 switch( id->p_decoder->fmt_in.i_cat )
727 transcode_audio_close( p_stream, id );
730 transcode_video_close( p_stream, id );
733 transcode_spu_close( p_stream, id );
738 if( id->id ) p_sys->p_out->pf_del( p_sys->p_out, id->id );
742 vlc_object_detach( id->p_decoder );
743 vlc_object_destroy( id->p_decoder );
748 vlc_object_detach( id->p_encoder );
749 vlc_object_destroy( id->p_encoder );
757 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
760 sout_stream_sys_t *p_sys = p_stream->p_sys;
763 if( !id->b_transcode && id->id )
765 return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_buffer );
767 else if( !id->b_transcode )
769 block_Release( p_buffer );
773 switch( id->p_decoder->fmt_in.i_cat )
776 transcode_audio_process( p_stream, id, p_buffer, &p_out );
780 if( transcode_video_process( p_stream, id, p_buffer, &p_out )
788 if( transcode_spu_process( p_stream, id, p_buffer, &p_out ) !=
796 block_Release( p_buffer );
800 if( p_out ) return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_out );
804 /****************************************************************************
805 * decoder reencoder part
806 ****************************************************************************/
807 int audio_BitsPerSample( vlc_fourcc_t i_format )
811 case VLC_FOURCC('u','8',' ',' '):
812 case VLC_FOURCC('s','8',' ',' '):
815 case VLC_FOURCC('u','1','6','l'):
816 case VLC_FOURCC('s','1','6','l'):
817 case VLC_FOURCC('u','1','6','b'):
818 case VLC_FOURCC('s','1','6','b'):
821 case VLC_FOURCC('u','2','4','l'):
822 case VLC_FOURCC('s','2','4','l'):
823 case VLC_FOURCC('u','2','4','b'):
824 case VLC_FOURCC('s','2','4','b'):
827 case VLC_FOURCC('u','3','2','l'):
828 case VLC_FOURCC('s','3','2','l'):
829 case VLC_FOURCC('u','3','2','b'):
830 case VLC_FOURCC('s','3','2','b'):
831 case VLC_FOURCC('f','l','3','2'):
832 case VLC_FOURCC('f','i','3','2'):
835 case VLC_FOURCC('f','l','6','4'):
842 static int transcode_audio_new( sout_stream_t *p_stream,
843 sout_stream_id_t *id )
845 sout_stream_sys_t *p_sys = p_stream->p_sys;
851 /* Initialization of decoder structures */
852 id->p_decoder->pf_decode_audio = 0;
853 id->p_decoder->pf_aout_buffer_new = audio_new_buffer;
854 id->p_decoder->pf_aout_buffer_del = audio_del_buffer;
855 //id->p_decoder->p_cfg = p_sys->p_video_cfg;
857 id->p_decoder->p_module =
858 module_Need( id->p_decoder, "decoder", "$codec", 0 );
860 if( !id->p_decoder->p_module )
862 msg_Err( p_stream, "cannot find decoder" );
865 id->p_decoder->fmt_out.audio.i_bitspersample =
866 audio_BitsPerSample( id->p_decoder->fmt_out.i_codec );
872 /* Initialization of encoder format structures */
873 es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
874 id->p_decoder->fmt_out.i_codec );
875 id->p_encoder->fmt_in.audio.i_format = id->p_decoder->fmt_out.i_codec;
877 /* Sanity check for audio channels */
878 id->p_encoder->fmt_out.audio.i_channels =
879 __MIN( id->p_encoder->fmt_out.audio.i_channels,
880 id->p_decoder->fmt_out.audio.i_channels );
881 if( id->p_decoder->fmt_out.audio.i_channels ==
882 id->p_encoder->fmt_out.audio.i_channels )
883 id->p_encoder->fmt_out.audio.i_physical_channels =
884 id->p_encoder->fmt_out.audio.i_original_channels =
885 id->p_decoder->fmt_out.audio.i_physical_channels;
887 id->p_encoder->fmt_out.audio.i_physical_channels =
888 id->p_encoder->fmt_out.audio.i_original_channels =
889 pi_channels_maps[id->p_encoder->fmt_out.audio.i_channels];
891 /* Initialization of encoder format structures */
892 es_format_Init( &id->p_encoder->fmt_in, AUDIO_ES, AOUT_FMT_S16_NE );
893 id->p_encoder->fmt_in.audio.i_format = AOUT_FMT_S16_NE;
894 id->p_encoder->fmt_in.audio.i_rate = id->p_encoder->fmt_out.audio.i_rate;
895 id->p_encoder->fmt_in.audio.i_physical_channels =
896 id->p_encoder->fmt_in.audio.i_original_channels =
897 id->p_encoder->fmt_out.audio.i_physical_channels;
898 id->p_encoder->fmt_in.audio.i_channels =
899 id->p_encoder->fmt_out.audio.i_channels;
900 id->p_encoder->fmt_in.audio.i_bitspersample =
901 audio_BitsPerSample( id->p_encoder->fmt_in.i_codec );
903 id->p_encoder->p_cfg = p_stream->p_sys->p_audio_cfg;
905 id->p_encoder->p_module =
906 module_Need( id->p_encoder, "encoder", p_sys->psz_aenc, VLC_TRUE );
907 if( !id->p_encoder->p_module )
909 msg_Err( p_stream, "cannot find encoder" );
910 module_Unneed( id->p_decoder, id->p_decoder->p_module );
911 id->p_decoder->p_module = 0;
914 id->p_encoder->fmt_in.audio.i_format = id->p_encoder->fmt_in.i_codec;
915 id->p_encoder->fmt_in.audio.i_bitspersample =
916 audio_BitsPerSample( id->p_encoder->fmt_in.i_codec );
918 /* Check if we need a filter for chroma conversion or resizing */
919 if( id->p_decoder->fmt_out.i_codec !=
920 id->p_encoder->fmt_in.i_codec )
923 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
924 vlc_object_attach( id->pp_filter[0], p_stream );
926 id->pp_filter[0]->pf_audio_buffer_new = __block_New;
928 id->pp_filter[0]->fmt_in = id->p_decoder->fmt_out;
929 id->pp_filter[0]->fmt_out = id->p_encoder->fmt_in;
930 id->pp_filter[0]->p_module =
931 module_Need( id->pp_filter[0], "audio filter2", 0, 0 );
932 if( id->pp_filter[0]->p_module ) id->i_filter++;
935 msg_Dbg( p_stream, "no audio filter found" );
936 vlc_object_detach( id->pp_filter[0] );
937 vlc_object_destroy( id->pp_filter[0] );
938 module_Unneed( id->p_decoder, id->p_decoder->p_module );
939 id->p_decoder->p_module = 0;
940 module_Unneed( id->p_encoder, id->p_encoder->p_module );
941 id->p_encoder->p_module = 0;
945 id->pp_filter[0]->fmt_out.audio.i_bitspersample =
946 audio_BitsPerSample( id->pp_filter[0]->fmt_out.i_codec );
948 /* Try a 2 stage conversion */
949 if( id->pp_filter[0]->fmt_out.i_codec !=
950 id->p_encoder->fmt_in.i_codec )
953 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
954 vlc_object_attach( id->pp_filter[1], p_stream );
956 id->pp_filter[1]->pf_audio_buffer_new = __block_New;
958 id->pp_filter[1]->fmt_in = id->pp_filter[0]->fmt_out;
959 id->pp_filter[1]->fmt_out = id->p_encoder->fmt_in;
960 id->pp_filter[1]->p_module =
961 module_Need( id->pp_filter[1], "audio filter2", 0, 0 );
962 if( !id->pp_filter[1]->p_module ||
963 id->pp_filter[1]->fmt_out.i_codec !=
964 id->p_encoder->fmt_in.i_codec )
966 msg_Dbg( p_stream, "no audio filter found" );
967 module_Unneed( id->pp_filter[0], id->pp_filter[0]->p_module );
968 vlc_object_detach( id->pp_filter[0] );
969 vlc_object_destroy( id->pp_filter[0] );
970 if( id->pp_filter[1]->p_module )
971 module_Unneed( id->pp_filter[0], id->pp_filter[0]->p_module );
972 vlc_object_detach( id->pp_filter[1] );
973 vlc_object_destroy( id->pp_filter[1] );
974 module_Unneed( id->p_decoder, id->p_decoder->p_module );
975 id->p_decoder->p_module = 0;
976 module_Unneed( id->p_encoder, id->p_encoder->p_module );
977 id->p_encoder->p_module = 0;
984 /* FIXME: Hack for mp3 transcoding support */
985 if( id->p_encoder->fmt_out.i_codec == VLC_FOURCC( 'm','p','3',' ' ) )
986 id->p_encoder->fmt_out.i_codec = VLC_FOURCC( 'm','p','g','a' );
991 static void transcode_audio_close( sout_stream_t *p_stream,
992 sout_stream_id_t *id )
997 if( id->p_decoder->p_module )
998 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1001 if( id->p_encoder->p_module )
1002 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1005 for( i = 0; i < id->i_filter; i++ )
1007 vlc_object_detach( id->pp_filter[i] );
1008 if( id->pp_filter[i]->p_module )
1009 module_Unneed( id->pp_filter[i], id->pp_filter[i]->p_module );
1010 vlc_object_destroy( id->pp_filter[i] );
1014 static int transcode_audio_process( sout_stream_t *p_stream,
1015 sout_stream_id_t *id,
1016 block_t *in, block_t **out )
1018 sout_stream_sys_t *p_sys = p_stream->p_sys;
1019 aout_buffer_t *p_audio_buf;
1020 block_t *p_block, *p_audio_block;
1024 while( (p_audio_buf = id->p_decoder->pf_decode_audio( id->p_decoder,
1027 if( p_sys->b_audio_sync )
1029 mtime_t i_dts = date_Get( &id->interpolated_pts ) + 1;
1030 p_sys->i_master_drift = p_audio_buf->start_date - i_dts;
1031 date_Increment( &id->interpolated_pts, p_audio_buf->i_nb_samples );
1032 p_audio_buf->start_date -= p_sys->i_master_drift;
1033 p_audio_buf->end_date -= p_sys->i_master_drift;
1036 p_audio_block = p_audio_buf->p_sys;
1037 p_audio_block->i_buffer = p_audio_buf->i_nb_bytes;
1038 p_audio_block->i_dts = p_audio_block->i_pts =
1039 p_audio_buf->start_date;
1040 p_audio_block->i_length = p_audio_buf->end_date -
1041 p_audio_buf->start_date;
1042 p_audio_block->i_samples = p_audio_buf->i_nb_samples;
1044 /* Run filter chain */
1045 for( i = 0; i < id->i_filter; i++ )
1048 id->pp_filter[i]->pf_audio_filter( id->pp_filter[i],
1052 p_audio_buf->p_buffer = p_audio_block->p_buffer;
1053 p_audio_buf->i_nb_bytes = p_audio_block->i_buffer;
1054 p_audio_buf->i_nb_samples = p_audio_block->i_samples;
1055 p_audio_buf->start_date = p_audio_block->i_dts;
1056 p_audio_buf->end_date = p_audio_block->i_dts + p_audio_block->i_length;
1058 p_block = id->p_encoder->pf_encode_audio( id->p_encoder, p_audio_buf );
1059 block_ChainAppend( out, p_block );
1060 block_Release( p_audio_block );
1061 free( p_audio_buf );
1067 static void audio_release_buffer( aout_buffer_t *p_buffer )
1069 if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1070 if( p_buffer ) free( p_buffer );
1073 static aout_buffer_t *audio_new_buffer( decoder_t *p_dec, int i_samples )
1075 aout_buffer_t *p_buffer;
1079 if( p_dec->fmt_out.audio.i_bitspersample )
1081 i_size = i_samples * p_dec->fmt_out.audio.i_bitspersample / 8 *
1082 p_dec->fmt_out.audio.i_channels;
1084 else if( p_dec->fmt_out.audio.i_bytes_per_frame &&
1085 p_dec->fmt_out.audio.i_frame_length )
1087 i_size = i_samples * p_dec->fmt_out.audio.i_bytes_per_frame /
1088 p_dec->fmt_out.audio.i_frame_length;
1092 i_size = i_samples * 4 * p_dec->fmt_out.audio.i_channels;
1095 p_buffer = malloc( sizeof(aout_buffer_t) );
1096 p_buffer->pf_release = audio_release_buffer;
1097 p_buffer->p_sys = p_block = block_New( p_dec, i_size );
1099 p_buffer->p_buffer = p_block->p_buffer;
1100 p_buffer->i_size = p_buffer->i_nb_bytes = p_block->i_buffer;
1101 p_buffer->i_nb_samples = i_samples;
1102 p_block->i_samples = i_samples;
1107 static void audio_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1109 if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1110 if( p_buffer ) free( p_buffer );
1116 static int transcode_video_new( sout_stream_t *p_stream, sout_stream_id_t *id )
1118 sout_stream_sys_t *p_sys = p_stream->p_sys;
1125 /* Initialization of decoder structures */
1126 id->p_decoder->pf_decode_video = 0;
1127 id->p_decoder->pf_vout_buffer_new = video_new_buffer_decoder;
1128 id->p_decoder->pf_vout_buffer_del = video_del_buffer_decoder;
1129 id->p_decoder->pf_picture_link = video_link_picture_decoder;
1130 id->p_decoder->pf_picture_unlink = video_unlink_picture_decoder;
1131 id->p_decoder->p_owner = malloc( sizeof(decoder_owner_sys_t) );
1132 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1133 id->p_decoder->p_owner->pp_pics[i] = 0;
1134 //id->p_decoder->p_cfg = p_sys->p_video_cfg;
1136 id->p_decoder->p_module =
1137 module_Need( id->p_decoder, "decoder", "$codec", 0 );
1139 if( !id->p_decoder->p_module )
1141 msg_Err( p_stream, "cannot find decoder" );
1142 return VLC_EGENERIC;
1147 * Because some info about the decoded input will only be available
1148 * once the first frame is decoded, we actually only test the availability
1149 * of the encoder here.
1152 /* Initialization of encoder format structures */
1153 es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1154 id->p_decoder->fmt_out.i_codec );
1155 id->p_encoder->fmt_in.video.i_chroma = id->p_decoder->fmt_out.i_codec;
1157 /* The dimensions will be set properly later on.
1158 * Just put sensible values so we can test an encoder is available. */
1159 id->p_encoder->fmt_in.video.i_width =
1160 id->p_encoder->fmt_out.video.i_width ?
1161 id->p_encoder->fmt_out.video.i_width :
1162 id->p_decoder->fmt_in.video.i_width ?
1163 id->p_decoder->fmt_in.video.i_width : 16;
1164 id->p_encoder->fmt_in.video.i_height =
1165 id->p_encoder->fmt_out.video.i_height ?
1166 id->p_encoder->fmt_out.video.i_height :
1167 id->p_decoder->fmt_in.video.i_height ?
1168 id->p_decoder->fmt_in.video.i_height : 16;
1169 id->p_encoder->fmt_in.video.i_frame_rate = 25;
1170 id->p_encoder->fmt_in.video.i_frame_rate_base = 1;
1172 id->p_encoder->i_threads = p_sys->i_threads;
1173 id->p_encoder->p_cfg = p_sys->p_video_cfg;
1175 id->p_encoder->p_module =
1176 module_Need( id->p_encoder, "encoder", p_sys->psz_venc, VLC_TRUE );
1177 if( !id->p_encoder->p_module )
1179 msg_Err( p_stream, "cannot find encoder" );
1180 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1181 id->p_decoder->p_module = 0;
1182 return VLC_EGENERIC;
1185 /* Close the encoder.
1186 * We'll open it only when we have the first frame. */
1187 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1188 id->p_encoder->p_module = NULL;
1190 if( p_sys->i_threads >= 1 )
1192 p_sys->id_video = id;
1193 vlc_mutex_init( p_stream, &p_sys->lock_out );
1194 vlc_cond_init( p_stream, &p_sys->cond );
1195 memset( p_sys->pp_pics, 0, sizeof(p_sys->pp_pics) );
1196 p_sys->i_first_pic = 0;
1197 p_sys->i_last_pic = 0;
1198 p_sys->p_buffers = NULL;
1199 p_sys->b_die = p_sys->b_error = 0;
1200 if( vlc_thread_create( p_sys, "encoder", EncoderThread,
1201 VLC_THREAD_PRIORITY_VIDEO, VLC_FALSE ) )
1203 msg_Err( p_stream, "cannot spawn encoder thread" );
1204 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1205 id->p_decoder->p_module = 0;
1206 return VLC_EGENERIC;
1210 date_Set( &id->interpolated_pts, 0 );
1215 static int transcode_video_encoder_open( sout_stream_t *p_stream,
1216 sout_stream_id_t *id )
1218 sout_stream_sys_t *p_sys = p_stream->p_sys;
1220 /* Hack because of the copy packetizer which can fail to detect the
1221 * proper size (which forces us to wait until the 1st frame
1223 int i_width = id->p_decoder->fmt_out.video.i_width -
1224 p_sys->i_crop_left - p_sys->i_crop_right;
1225 int i_height = id->p_decoder->fmt_out.video.i_height -
1226 p_sys->i_crop_top - p_sys->i_crop_bottom;
1228 if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1229 id->p_encoder->fmt_out.video.i_height <= 0 && p_sys->f_scale )
1231 /* Apply the scaling */
1232 id->p_encoder->fmt_out.video.i_width = i_width * p_sys->f_scale;
1233 id->p_encoder->fmt_out.video.i_height = i_height * p_sys->f_scale;
1235 else if( id->p_encoder->fmt_out.video.i_width > 0 &&
1236 id->p_encoder->fmt_out.video.i_height <= 0 )
1238 id->p_encoder->fmt_out.video.i_height =
1239 id->p_encoder->fmt_out.video.i_width / (double)i_width * i_height;
1241 else if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1242 id->p_encoder->fmt_out.video.i_height > 0 )
1244 id->p_encoder->fmt_out.video.i_width =
1245 id->p_encoder->fmt_out.video.i_height / (double)i_height * i_width;
1248 /* Make sure the size is at least a multiple of 2 */
1249 id->p_encoder->fmt_out.video.i_width =
1250 (id->p_encoder->fmt_out.video.i_width + 1) >> 1 << 1;
1251 id->p_encoder->fmt_out.video.i_height =
1252 (id->p_encoder->fmt_out.video.i_height + 1) >> 1 << 1;
1254 id->p_encoder->fmt_in.video.i_width =
1255 id->p_encoder->fmt_out.video.i_width;
1256 id->p_encoder->fmt_in.video.i_height =
1257 id->p_encoder->fmt_out.video.i_height;
1259 if( !id->p_encoder->fmt_out.video.i_frame_rate ||
1260 !id->p_encoder->fmt_out.video.i_frame_rate_base )
1262 if( id->p_decoder->fmt_out.video.i_frame_rate &&
1263 id->p_decoder->fmt_out.video.i_frame_rate_base )
1265 id->p_encoder->fmt_out.video.i_frame_rate =
1266 id->p_decoder->fmt_out.video.i_frame_rate;
1267 id->p_encoder->fmt_out.video.i_frame_rate_base =
1268 id->p_decoder->fmt_out.video.i_frame_rate_base;
1272 /* Pick a sensible default value */
1273 id->p_encoder->fmt_out.video.i_frame_rate = 25;
1274 id->p_encoder->fmt_out.video.i_frame_rate_base = 1;
1278 id->p_encoder->fmt_in.video.i_frame_rate =
1279 id->p_encoder->fmt_out.video.i_frame_rate;
1280 id->p_encoder->fmt_in.video.i_frame_rate_base =
1281 id->p_encoder->fmt_out.video.i_frame_rate_base;
1283 date_Init( &id->interpolated_pts,
1284 id->p_encoder->fmt_out.video.i_frame_rate,
1285 id->p_encoder->fmt_out.video.i_frame_rate_base );
1287 /* Check whether a particular aspect ratio was requested */
1288 if( !id->p_encoder->fmt_out.video.i_aspect )
1290 id->p_encoder->fmt_out.video.i_aspect =
1291 id->p_decoder->fmt_out.video.i_aspect;
1293 id->p_encoder->fmt_in.video.i_aspect =
1294 id->p_encoder->fmt_out.video.i_aspect;
1296 id->p_encoder->p_module =
1297 module_Need( id->p_encoder, "encoder", p_sys->psz_venc, VLC_TRUE );
1298 if( !id->p_encoder->p_module )
1300 msg_Err( p_stream, "cannot find encoder" );
1301 return VLC_EGENERIC;
1304 id->p_encoder->fmt_in.video.i_chroma = id->p_encoder->fmt_in.i_codec;
1306 /* Hack for mp2v/mp1v transcoding support */
1307 if( id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','1','v') ||
1308 id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','2','v') )
1310 id->p_encoder->fmt_out.i_codec = VLC_FOURCC('m','p','g','v');
1313 id->id = p_stream->p_sys->p_out->pf_add( p_stream->p_sys->p_out,
1314 &id->p_encoder->fmt_out );
1317 msg_Err( p_stream, "cannot add this stream" );
1318 return VLC_EGENERIC;
1324 static void transcode_video_close( sout_stream_t *p_stream,
1325 sout_stream_id_t *id )
1329 if( p_stream->p_sys->i_threads >= 1 )
1331 vlc_mutex_lock( &p_stream->p_sys->lock_out );
1332 p_stream->p_sys->b_die = 1;
1333 vlc_cond_signal( &p_stream->p_sys->cond );
1334 vlc_mutex_unlock( &p_stream->p_sys->lock_out );
1335 vlc_thread_join( p_stream->p_sys );
1336 vlc_mutex_destroy( &p_stream->p_sys->lock_out );
1337 vlc_cond_destroy( &p_stream->p_sys->cond );
1341 if( id->p_decoder->p_module )
1342 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1344 if( id->p_decoder->p_owner )
1346 /* Clean-up pictures ring buffer */
1347 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1349 if( id->p_decoder->p_owner->pp_pics[i] )
1350 video_del_buffer( VLC_OBJECT(id->p_decoder),
1351 id->p_decoder->p_owner->pp_pics[i] );
1353 free( id->p_decoder->p_owner );
1357 if( id->p_encoder->p_module )
1358 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1361 for( i = 0; i < id->i_filter; i++ )
1363 vlc_object_detach( id->pp_filter[i] );
1364 if( id->pp_filter[i]->p_module )
1365 module_Unneed( id->pp_filter[i], id->pp_filter[i]->p_module );
1367 /* Clean-up pictures ring buffer */
1368 for( j = 0; j < PICTURE_RING_SIZE; j++ )
1370 if( id->pp_filter[i]->p_owner->pp_pics[j] )
1371 video_del_buffer( VLC_OBJECT(id->pp_filter[i]),
1372 id->pp_filter[i]->p_owner->pp_pics[j] );
1374 free( id->pp_filter[i]->p_owner );
1376 vlc_object_destroy( id->pp_filter[i] );
1380 static int transcode_video_process( sout_stream_t *p_stream,
1381 sout_stream_id_t *id,
1382 block_t *in, block_t **out )
1384 sout_stream_sys_t *p_sys = p_stream->p_sys;
1385 int i_duplicate = 1, i;
1389 while( (p_pic = id->p_decoder->pf_decode_video( id->p_decoder, &in )) )
1391 subpicture_t *p_subpic = 0;
1393 if( p_sys->b_audio_sync )
1395 mtime_t i_video_drift;
1396 mtime_t i_master_drift = p_sys->i_master_drift;
1399 if( !i_master_drift )
1401 /* No audio track ? */
1402 p_sys->i_master_drift = i_master_drift = p_pic->date;
1405 i_pts = date_Get( &id->interpolated_pts ) + 1;
1406 i_video_drift = p_pic->date - i_pts;
1409 /* Set the pts of the frame being encoded */
1410 p_pic->date = i_pts;
1412 if( i_video_drift < i_master_drift - 50000 )
1415 msg_Dbg( p_stream, "dropping frame (%i)",
1416 (int)(i_video_drift - i_master_drift) );
1418 return VLC_EGENERIC;
1420 else if( i_video_drift > i_master_drift + 50000 )
1423 msg_Dbg( p_stream, "adding frame (%i)",
1424 (int)(i_video_drift - i_master_drift) );
1430 if( !id->p_encoder->p_module )
1432 if( transcode_video_encoder_open( p_stream, id ) != VLC_SUCCESS )
1434 transcode_video_close( p_stream, id );
1435 id->b_transcode = VLC_FALSE;
1436 return VLC_EGENERIC;
1440 if( p_stream->p_sys->b_deinterlace )
1442 id->pp_filter[id->i_filter] =
1443 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1444 vlc_object_attach( id->pp_filter[id->i_filter], p_stream );
1446 id->pp_filter[id->i_filter]->pf_vout_buffer_new =
1447 video_new_buffer_filter;
1448 id->pp_filter[id->i_filter]->pf_vout_buffer_del =
1449 video_del_buffer_filter;
1451 id->pp_filter[id->i_filter]->fmt_in = id->p_decoder->fmt_out;
1452 id->pp_filter[id->i_filter]->fmt_out = id->p_decoder->fmt_out;
1453 id->pp_filter[id->i_filter]->p_module =
1454 module_Need( id->pp_filter[id->i_filter],
1455 "video filter2", "deinterlace", 0 );
1456 if( id->pp_filter[id->i_filter]->p_module )
1458 id->pp_filter[id->i_filter]->p_owner =
1459 malloc( sizeof(filter_owner_sys_t) );
1460 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1461 id->pp_filter[id->i_filter]->p_owner->pp_pics[i] = 0;
1467 msg_Dbg( p_stream, "no video filter found" );
1468 vlc_object_detach( id->pp_filter[id->i_filter] );
1469 vlc_object_destroy( id->pp_filter[id->i_filter] );
1473 /* Check if we need a filter for chroma conversion or resizing */
1474 if( id->p_decoder->fmt_out.video.i_chroma !=
1475 id->p_encoder->fmt_in.video.i_chroma ||
1476 id->p_decoder->fmt_out.video.i_width !=
1477 id->p_encoder->fmt_out.video.i_width ||
1478 id->p_decoder->fmt_out.video.i_height !=
1479 id->p_encoder->fmt_out.video.i_height ||
1480 p_sys->i_crop_top > 0 || p_sys->i_crop_bottom > 0 ||
1481 p_sys->i_crop_left > 0 || p_sys->i_crop_right > 0 )
1483 id->pp_filter[id->i_filter] =
1484 vlc_object_create( p_stream, VLC_OBJECT_FILTER );
1485 vlc_object_attach( id->pp_filter[id->i_filter], p_stream );
1487 id->pp_filter[id->i_filter]->pf_vout_buffer_new =
1488 video_new_buffer_filter;
1489 id->pp_filter[id->i_filter]->pf_vout_buffer_del =
1490 video_del_buffer_filter;
1492 id->pp_filter[id->i_filter]->fmt_in = id->p_decoder->fmt_out;
1493 id->pp_filter[id->i_filter]->fmt_out = id->p_encoder->fmt_in;
1494 id->pp_filter[id->i_filter]->p_module =
1495 module_Need( id->pp_filter[id->i_filter],
1496 "video filter2", 0, 0 );
1497 if( id->pp_filter[id->i_filter]->p_module )
1499 id->pp_filter[id->i_filter]->p_owner =
1500 malloc( sizeof(filter_owner_sys_t) );
1501 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1502 id->pp_filter[id->i_filter]->p_owner->pp_pics[i] = 0;
1508 msg_Dbg( p_stream, "no video filter found" );
1509 vlc_object_detach( id->pp_filter[id->i_filter] );
1510 vlc_object_destroy( id->pp_filter[id->i_filter] );
1512 transcode_video_close( p_stream, id );
1513 id->b_transcode = VLC_FALSE;
1514 return VLC_EGENERIC;
1519 /* Run filter chain */
1520 for( i = 0; i < id->i_filter; i++ )
1522 p_pic = id->pp_filter[i]->pf_video_filter(id->pp_filter[i], p_pic);
1529 /* Check if we have a subpicture to overlay */
1532 p_subpic = spu_SortSubpictures( p_sys->p_spu, p_pic->date );
1533 /* TODO: get another pic */
1536 /* Overlay subpicture */
1539 int i_scale_width, i_scale_height;
1540 video_format_t *p_fmt;
1542 i_scale_width = id->p_encoder->fmt_in.video.i_width * 1000 /
1543 id->p_decoder->fmt_out.video.i_width;
1544 i_scale_height = id->p_encoder->fmt_in.video.i_height * 1000 /
1545 id->p_decoder->fmt_out.video.i_height;
1547 if( p_pic->i_refcount && !id->i_filter )
1549 /* We can't modify the picture, we need to duplicate it */
1550 picture_t *p_tmp = video_new_buffer_decoder( id->p_decoder );
1553 vout_CopyPicture( p_stream, p_tmp, p_pic );
1554 p_pic->pf_release( p_pic );
1560 p_fmt = &id->pp_filter[id->i_filter -1]->fmt_out.video;
1562 p_fmt = &id->p_decoder->fmt_out.video;
1564 spu_RenderSubpictures( p_sys->p_spu, p_fmt, p_pic, p_pic, p_subpic,
1565 i_scale_width, i_scale_height );
1568 if( p_sys->i_threads >= 1 )
1570 vlc_mutex_lock( &p_sys->lock_out );
1571 p_sys->pp_pics[p_sys->i_last_pic++] = p_pic;
1572 p_sys->i_last_pic %= PICTURE_RING_SIZE;
1573 *out = p_sys->p_buffers;
1574 p_sys->p_buffers = NULL;
1575 vlc_cond_signal( &p_sys->cond );
1576 vlc_mutex_unlock( &p_sys->lock_out );
1581 p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
1582 block_ChainAppend( out, p_block );
1584 if( p_sys->b_audio_sync )
1585 date_Increment( &id->interpolated_pts, 1 );
1587 if( p_sys->b_audio_sync && i_duplicate > 1 )
1589 mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
1590 date_Increment( &id->interpolated_pts, 1 );
1591 p_pic->date = i_pts;
1592 p_block = id->p_encoder->pf_encode_video(id->p_encoder, p_pic);
1593 block_ChainAppend( out, p_block );
1596 p_pic->pf_release( p_pic );
1603 static int EncoderThread( sout_stream_sys_t *p_sys )
1605 sout_stream_id_t *id = p_sys->id_video;
1609 while( !p_sys->b_die && !p_sys->b_error )
1613 vlc_mutex_lock( &p_sys->lock_out );
1614 while( p_sys->i_last_pic == p_sys->i_first_pic )
1616 vlc_cond_wait( &p_sys->cond, &p_sys->lock_out );
1617 if( p_sys->b_die || p_sys->b_error ) break;
1619 if( p_sys->b_die || p_sys->b_error )
1621 vlc_mutex_unlock( &p_sys->lock_out );
1625 p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
1626 p_sys->i_first_pic %= PICTURE_RING_SIZE;
1627 vlc_mutex_unlock( &p_sys->lock_out );
1629 p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
1630 vlc_mutex_lock( &p_sys->lock_out );
1631 block_ChainAppend( &p_sys->p_buffers, p_block );
1632 vlc_mutex_unlock( &p_sys->lock_out );
1634 for( i_plane = 0; i_plane < p_pic->i_planes; i_plane++ )
1636 free( p_pic->p[i_plane].p_pixels );
1641 while( p_sys->i_last_pic != p_sys->i_first_pic )
1643 p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
1644 p_sys->i_first_pic %= PICTURE_RING_SIZE;
1646 for( i_plane = 0; i_plane < p_pic->i_planes; i_plane++ )
1648 free( p_pic->p[i_plane].p_pixels );
1653 block_ChainRelease( p_sys->p_buffers );
1658 struct picture_sys_t
1660 vlc_object_t *p_owner;
1663 static void video_release_buffer( picture_t *p_pic )
1665 if( p_pic && !p_pic->i_refcount && p_pic->pf_release && p_pic->p_sys )
1667 video_del_buffer_decoder( (decoder_t *)p_pic->p_sys->p_owner, p_pic );
1669 else if( p_pic && p_pic->i_refcount > 0 ) p_pic->i_refcount--;
1672 static picture_t *video_new_buffer( vlc_object_t *p_this, picture_t **pp_ring )
1674 decoder_t *p_dec = (decoder_t *)p_this;
1678 /* Find an empty space in the picture ring buffer */
1679 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1681 if( pp_ring[i] != 0 && pp_ring[i]->i_status == DESTROYED_PICTURE )
1683 pp_ring[i]->i_status = RESERVED_PICTURE;
1687 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1689 if( pp_ring[i] == 0 ) break;
1692 if( i == PICTURE_RING_SIZE )
1694 msg_Err( p_this, "decoder/filter is leaking pictures, "
1695 "resetting its ring buffer" );
1697 for( i = 0; i < PICTURE_RING_SIZE; i++ )
1699 pp_ring[i]->pf_release( pp_ring[i] );
1705 p_pic = malloc( sizeof(picture_t) );
1706 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
1707 vout_AllocatePicture( VLC_OBJECT(p_dec), p_pic,
1708 p_dec->fmt_out.video.i_chroma,
1709 p_dec->fmt_out.video.i_width,
1710 p_dec->fmt_out.video.i_height,
1711 p_dec->fmt_out.video.i_aspect );
1713 if( !p_pic->i_planes )
1719 p_pic->pf_release = video_release_buffer;
1720 p_pic->p_sys = malloc( sizeof(picture_sys_t) );
1721 p_pic->p_sys->p_owner = p_this;
1722 p_pic->i_status = RESERVED_PICTURE;
1729 static picture_t *video_new_buffer_decoder( decoder_t *p_dec )
1731 return video_new_buffer( VLC_OBJECT(p_dec),
1732 p_dec->p_owner->pp_pics );
1735 static picture_t *video_new_buffer_filter( filter_t *p_filter )
1737 return video_new_buffer( VLC_OBJECT(p_filter),
1738 p_filter->p_owner->pp_pics );
1741 static void video_del_buffer( vlc_object_t *p_this, picture_t *p_pic )
1743 if( p_pic && p_pic->p_data_orig ) free( p_pic->p_data_orig );
1744 if( p_pic && p_pic->p_sys ) free( p_pic->p_sys );
1745 if( p_pic ) free( p_pic );
1748 static void video_del_buffer_decoder( decoder_t *p_decoder, picture_t *p_pic )
1750 p_pic->i_refcount = 0;
1751 p_pic->i_status = DESTROYED_PICTURE;
1754 static void video_del_buffer_filter( filter_t *p_filter, picture_t *p_pic )
1756 p_pic->i_refcount = 0;
1757 p_pic->i_status = DESTROYED_PICTURE;
1760 static void video_link_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
1762 p_pic->i_refcount++;
1765 static void video_unlink_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
1767 video_release_buffer( p_pic );
1773 static subpicture_t *spu_new_buffer( decoder_t * );
1774 static void spu_del_buffer( decoder_t *, subpicture_t * );
1776 static int transcode_spu_new( sout_stream_t *p_stream, sout_stream_id_t *id )
1778 sout_stream_sys_t *p_sys = p_stream->p_sys;
1784 /* Initialization of decoder structures */
1785 id->p_decoder->pf_spu_buffer_new = spu_new_buffer;
1786 id->p_decoder->pf_spu_buffer_del = spu_del_buffer;
1787 id->p_decoder->p_owner = (decoder_owner_sys_t *)p_stream;
1788 //id->p_decoder->p_cfg = p_sys->p_spu_cfg;
1790 id->p_decoder->p_module =
1791 module_Need( id->p_decoder, "decoder", "$codec", 0 );
1793 if( !id->p_decoder->p_module )
1795 msg_Err( p_stream, "cannot find decoder" );
1796 return VLC_EGENERIC;
1799 if( !p_sys->b_soverlay )
1805 /* Initialization of encoder format structures */
1806 es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1807 id->p_decoder->fmt_in.i_codec );
1809 id->p_encoder->p_cfg = p_sys->p_spu_cfg;
1811 id->p_encoder->p_module =
1812 module_Need( id->p_encoder, "encoder", p_sys->psz_senc, VLC_TRUE );
1814 if( !id->p_encoder->p_module )
1816 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1817 msg_Err( p_stream, "cannot find encoder" );
1818 return VLC_EGENERIC;
1821 else if( !p_sys->p_spu )
1823 p_sys->p_spu = spu_Create( p_stream );
1824 spu_Init( p_sys->p_spu );
1830 static void transcode_spu_close( sout_stream_t *p_stream, sout_stream_id_t *id)
1833 if( id->p_decoder->p_module )
1834 module_Unneed( id->p_decoder, id->p_decoder->p_module );
1837 if( id->p_encoder->p_module )
1838 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1841 static int transcode_spu_process( sout_stream_t *p_stream,
1842 sout_stream_id_t *id,
1843 block_t *in, block_t **out )
1845 sout_stream_sys_t *p_sys = p_stream->p_sys;
1846 subpicture_t *p_subpic;
1849 p_subpic = id->p_decoder->pf_decode_sub( id->p_decoder, &in );
1850 if( p_subpic && p_sys->b_soverlay )
1852 spu_DisplaySubpicture( p_sys->p_spu, p_subpic );
1855 if( p_subpic && !p_sys->b_soverlay )
1859 p_block = id->p_encoder->pf_encode_sub( id->p_encoder, p_subpic );
1860 spu_del_buffer( id->p_decoder, p_subpic );
1864 block_ChainAppend( out, p_block );
1869 return VLC_EGENERIC;
1872 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
1874 sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
1875 return spu_CreateSubpicture( p_stream->p_sys->p_spu );
1878 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
1880 sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
1881 spu_DestroySubpicture( p_stream->p_sys->p_spu, p_subpic );