1 /*****************************************************************************
2 * decoder.c: Functions for the management of decoders
3 *****************************************************************************
4 * Copyright (C) 1999-2004 the VideoLAN team
7 * Authors: Christophe Massiot <massiot@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
9 * Laurent Aimar <fenrir@via.ecp.fr>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
26 /*****************************************************************************
28 *****************************************************************************/
31 #include <vlc_block.h>
35 #include <vlc_codec.h>
38 #include <vlc_interface.h>
39 #include "audio_output/aout_internal.h"
40 #include "stream_output/stream_output.h"
41 #include "input_internal.h"
43 static decoder_t * CreateDecoder( input_thread_t *, es_format_t *, int );
44 static void DeleteDecoder( decoder_t * );
46 static int DecoderThread( decoder_t * );
47 static int DecoderDecode( decoder_t * p_dec, block_t *p_block );
49 /* Buffers allocation callbacks for the decoders */
50 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
51 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
53 static picture_t *vout_new_buffer( decoder_t * );
54 static void vout_del_buffer( decoder_t *, picture_t * );
55 static void vout_link_picture( decoder_t *, picture_t * );
56 static void vout_unlink_picture( decoder_t *, picture_t * );
58 static subpicture_t *spu_new_buffer( decoder_t * );
59 static void spu_del_buffer( decoder_t *, subpicture_t * );
61 static es_format_t null_es_format;
63 struct decoder_owner_sys_t
65 vlc_bool_t b_own_thread;
67 int64_t i_preroll_end;
69 input_thread_t *p_input;
71 aout_instance_t *p_aout;
72 aout_input_t *p_aout_input;
74 vout_thread_t *p_vout;
76 vout_thread_t *p_spu_vout;
79 sout_instance_t *p_sout;
80 sout_packetizer_input_t *p_sout_input;
82 /* Some decoders require already packetized data (ie. not truncated) */
83 decoder_t *p_packetizer;
85 /* Current format in use by the output */
94 /* decoder_GetInputAttachment:
96 input_attachment_t *decoder_GetInputAttachment( decoder_t *p_dec,
97 const char *psz_name )
99 input_attachment_t *p_attachment;
100 if( input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENT, &p_attachment, psz_name ) )
104 /* decoder_GetInputAttachments:
106 int decoder_GetInputAttachments( decoder_t *p_dec,
107 input_attachment_t ***ppp_attachment,
110 return input_Control( p_dec->p_owner->p_input, INPUT_GET_ATTACHMENTS,
111 ppp_attachment, pi_attachment );
115 * Spawns a new decoder thread
117 * \param p_input the input thread
118 * \param p_es the es descriptor
119 * \return the spawned decoder object
121 decoder_t *input_DecoderNew( input_thread_t *p_input,
122 es_format_t *fmt, vlc_bool_t b_force_decoder )
124 decoder_t *p_dec = NULL;
127 /* If we are in sout mode, search for packetizer module */
128 if( p_input->p->p_sout && !b_force_decoder )
130 /* Create the decoder configuration structure */
131 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_PACKETIZER );
134 msg_Err( p_input, "could not create packetizer" );
135 intf_UserFatal( p_input, VLC_FALSE, _("Streaming / Transcoding failed"),
136 _("VLC could not open the packetizer module.") );
142 /* Create the decoder configuration structure */
143 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_DECODER );
146 msg_Err( p_input, "could not create decoder" );
147 intf_UserFatal( p_input, VLC_FALSE, _("Streaming / Transcoding failed"),
148 _("VLC could not open the decoder module.") );
153 if( !p_dec->p_module )
155 msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
156 "VLC probably does not support this sound or video format.",
157 (char*)&p_dec->fmt_in.i_codec );
158 intf_UserFatal( p_dec, VLC_FALSE, _("No suitable decoder module "
159 "for format"), _("VLC probably does not support the \"%4.4s\" "
160 "audio or video format. Unfortunately there is no way for you "
161 "to fix this."), (char*)&p_dec->fmt_in.i_codec );
163 DeleteDecoder( p_dec );
164 vlc_object_destroy( p_dec );
168 if( p_input->p->p_sout && p_input->p->input.b_can_pace_control &&
171 msg_Dbg( p_input, "stream out mode -> no decoder thread" );
172 p_dec->p_owner->b_own_thread = VLC_FALSE;
176 var_Get( p_input, "minimize-threads", &val );
177 p_dec->p_owner->b_own_thread = !val.b_bool;
180 if( p_dec->p_owner->b_own_thread )
183 if( fmt->i_cat == AUDIO_ES )
184 i_priority = VLC_THREAD_PRIORITY_AUDIO;
186 i_priority = VLC_THREAD_PRIORITY_VIDEO;
188 /* Spawn the decoder thread */
189 if( vlc_thread_create( p_dec, "decoder", DecoderThread,
190 i_priority, VLC_FALSE ) )
192 msg_Err( p_dec, "cannot spawn decoder thread" );
193 module_Unneed( p_dec, p_dec->p_module );
194 DeleteDecoder( p_dec );
195 vlc_object_destroy( p_dec );
204 * Kills a decoder thread and waits until it's finished
206 * \param p_input the input thread
207 * \param p_es the es descriptor
210 void input_DecoderDelete( decoder_t *p_dec )
212 vlc_object_kill( p_dec );
214 if( p_dec->p_owner->b_own_thread )
216 /* Make sure the thread leaves the function by
217 * sending it an empty block. */
218 block_t *p_block = block_New( p_dec, 0 );
219 input_DecoderDecode( p_dec, p_block );
221 vlc_thread_join( p_dec );
223 /* Don't module_Unneed() here because of the dll loader that wants
224 * close() in the same thread than open()/decode() */
229 input_DecoderDecode( p_dec, NULL );
231 module_Unneed( p_dec, p_dec->p_module );
234 /* Delete decoder configuration */
235 DeleteDecoder( p_dec );
237 /* Delete the decoder */
238 vlc_object_destroy( p_dec );
242 * Put a block_t in the decoder's fifo.
244 * \param p_dec the decoder object
245 * \param p_block the data block
247 void input_DecoderDecode( decoder_t * p_dec, block_t *p_block )
249 if( p_dec->p_owner->b_own_thread )
251 if( p_dec->p_owner->p_input->p->b_out_pace_control )
254 while( !p_dec->b_die && !p_dec->b_error &&
255 p_dec->p_owner->p_fifo->i_depth > 10 )
260 else if( p_dec->p_owner->p_fifo->i_size > 50000000 /* 50 MB */ )
262 /* FIXME: ideally we would check the time amount of data
263 * in the fifo instead of its size. */
264 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
265 "consumed quickly enough), resetting fifo!" );
266 block_FifoEmpty( p_dec->p_owner->p_fifo );
269 block_FifoPut( p_dec->p_owner->p_fifo, p_block );
273 if( p_dec->b_error || (p_block && p_block->i_buffer <= 0) )
275 if( p_block ) block_Release( p_block );
279 DecoderDecode( p_dec, p_block );
284 void input_DecoderDiscontinuity( decoder_t * p_dec, vlc_bool_t b_flush )
289 if( p_dec->p_owner->b_own_thread && b_flush )
290 block_FifoEmpty( p_dec->p_owner->p_fifo );
292 /* Send a special block */
293 p_null = block_New( p_dec, 128 );
294 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY;
295 /* FIXME check for p_packetizer or b_packitized from es_format_t of input ? */
296 if( p_dec->p_owner->p_packetizer && b_flush )
297 p_null->i_flags |= BLOCK_FLAG_CORRUPTED;
298 memset( p_null->p_buffer, 0, p_null->i_buffer );
300 input_DecoderDecode( p_dec, p_null );
303 vlc_bool_t input_DecoderEmpty( decoder_t * p_dec )
305 if( p_dec->p_owner->b_own_thread && p_dec->p_owner->p_fifo->i_depth > 0 )
313 * Create a decoder object
315 * \param p_input the input thread
316 * \param p_es the es descriptor
317 * \param i_object_type Object type as define in include/vlc_objects.h
318 * \return the decoder object
320 static decoder_t * CreateDecoder( input_thread_t *p_input,
321 es_format_t *fmt, int i_object_type )
325 p_dec = vlc_object_create( p_input, i_object_type );
328 msg_Err( p_input, "out of memory" );
332 p_dec->pf_decode_audio = 0;
333 p_dec->pf_decode_video = 0;
334 p_dec->pf_decode_sub = 0;
335 p_dec->pf_packetize = 0;
337 /* Initialize the decoder fifo */
338 p_dec->p_module = NULL;
340 memset( &null_es_format, 0, sizeof(es_format_t) );
341 es_format_Copy( &p_dec->fmt_in, fmt );
342 es_format_Copy( &p_dec->fmt_out, &null_es_format );
344 /* Allocate our private structure for the decoder */
345 p_dec->p_owner = malloc( sizeof( decoder_owner_sys_t ) );
346 if( p_dec->p_owner == NULL )
348 msg_Err( p_dec, "out of memory" );
351 p_dec->p_owner->b_own_thread = VLC_TRUE;
352 p_dec->p_owner->i_preroll_end = -1;
353 p_dec->p_owner->p_input = p_input;
354 p_dec->p_owner->p_aout = NULL;
355 p_dec->p_owner->p_aout_input = NULL;
356 p_dec->p_owner->p_vout = NULL;
357 p_dec->p_owner->p_spu_vout = NULL;
358 p_dec->p_owner->i_spu_channel = 0;
359 p_dec->p_owner->p_sout = p_input->p->p_sout;
360 p_dec->p_owner->p_sout_input = NULL;
361 p_dec->p_owner->p_packetizer = NULL;
364 if( ( p_dec->p_owner->p_fifo = block_FifoNew( p_dec ) ) == NULL )
366 msg_Err( p_dec, "out of memory" );
370 /* Set buffers allocation callbacks for the decoders */
371 p_dec->pf_aout_buffer_new = aout_new_buffer;
372 p_dec->pf_aout_buffer_del = aout_del_buffer;
373 p_dec->pf_vout_buffer_new = vout_new_buffer;
374 p_dec->pf_vout_buffer_del = vout_del_buffer;
375 p_dec->pf_picture_link = vout_link_picture;
376 p_dec->pf_picture_unlink = vout_unlink_picture;
377 p_dec->pf_spu_buffer_new = spu_new_buffer;
378 p_dec->pf_spu_buffer_del = spu_del_buffer;
380 vlc_object_attach( p_dec, p_input );
382 /* Find a suitable decoder/packetizer module */
383 if( i_object_type == VLC_OBJECT_DECODER )
384 p_dec->p_module = module_Need( p_dec, "decoder", "$codec", 0 );
386 p_dec->p_module = module_Need( p_dec, "packetizer", "$packetizer", 0 );
388 /* Check if decoder requires already packetized data */
389 if( i_object_type == VLC_OBJECT_DECODER &&
390 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
392 p_dec->p_owner->p_packetizer =
393 vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
394 if( p_dec->p_owner->p_packetizer )
396 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
399 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
402 vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
404 p_dec->p_owner->p_packetizer->p_module =
405 module_Need( p_dec->p_owner->p_packetizer,
406 "packetizer", "$packetizer", 0 );
408 if( !p_dec->p_owner->p_packetizer->p_module )
410 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
411 vlc_object_detach( p_dec->p_owner->p_packetizer );
412 vlc_object_destroy( p_dec->p_owner->p_packetizer );
417 /* Copy ourself the input replay gain */
418 if( fmt->i_cat == AUDIO_ES )
421 for( i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
423 if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
425 p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
426 p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
428 if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
430 p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
431 p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
439 * The decoding main loop
441 * \param p_dec the decoder
444 static int DecoderThread( decoder_t * p_dec )
448 /* The decoder's main loop */
449 while( !p_dec->b_die && !p_dec->b_error )
451 if( ( p_block = block_FifoGet( p_dec->p_owner->p_fifo ) ) == NULL )
456 if( DecoderDecode( p_dec, p_block ) != VLC_SUCCESS )
462 while( !p_dec->b_die )
464 /* Trash all received PES packets */
465 p_block = block_FifoGet( p_dec->p_owner->p_fifo );
466 if( p_block ) block_Release( p_block );
469 /* We do it here because of the dll loader that wants close() in the
470 * same thread than open()/decode() */
471 module_Unneed( p_dec, p_dec->p_module );
476 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
478 if( p->i_flags & (BLOCK_FLAG_PREROLL|BLOCK_FLAG_DISCONTINUITY) )
479 *pi_preroll = INT64_MAX;
480 else if( p->i_pts > 0 )
481 *pi_preroll = __MIN( *pi_preroll, p->i_pts );
482 else if( p->i_dts > 0 )
483 *pi_preroll = __MIN( *pi_preroll, p->i_dts );
485 static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
487 input_thread_t *p_input = p_dec->p_owner->p_input;
488 const int i_rate = p_block->i_rate;
489 aout_buffer_t *p_aout_buf;
491 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
493 vlc_mutex_lock( &p_input->p->counters.counters_lock );
494 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_audio, 1, NULL );
495 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
497 if( p_aout_buf->start_date < p_dec->p_owner->i_preroll_end )
499 aout_DecDeleteBuffer( p_dec->p_owner->p_aout,
500 p_dec->p_owner->p_aout_input, p_aout_buf );
504 if( p_dec->p_owner->i_preroll_end > 0 )
506 /* FIXME TODO flush audio output (don't know how to do that) */
507 msg_Dbg( p_dec, "End of audio preroll" );
508 p_dec->p_owner->i_preroll_end = -1;
510 aout_DecPlay( p_dec->p_owner->p_aout,
511 p_dec->p_owner->p_aout_input,
512 p_aout_buf, i_rate );
515 static void VoutDisplayedPicture( vout_thread_t *p_vout, picture_t *p_pic )
517 vlc_mutex_lock( &p_vout->picture_lock );
519 if( p_pic->i_status == READY_PICTURE )
521 /* Grr cannot destroy ready picture by myself so be sure vout won't like it */
524 else if( p_pic->i_refcount > 0 )
526 p_pic->i_status = DISPLAYED_PICTURE;
530 p_pic->i_status = DESTROYED_PICTURE;
531 p_vout->i_heap_size--;
534 vlc_mutex_unlock( &p_vout->picture_lock );
536 static void VoutFlushPicture( vout_thread_t *p_vout )
539 vlc_mutex_lock( &p_vout->picture_lock );
540 for( i = 0; i < p_vout->render.i_pictures; i++ )
542 picture_t *p_pic = p_vout->render.pp_picture[i];
544 if( p_pic->i_status == READY_PICTURE ||
545 p_pic->i_status == DISPLAYED_PICTURE )
547 /* We cannot change picture status if it is in READY_PICTURE state,
548 * Just make sure they won't be displayed */
552 vlc_mutex_unlock( &p_vout->picture_lock );
554 static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
556 input_thread_t *p_input = p_dec->p_owner->p_input;
559 while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
561 vlc_mutex_lock( &p_input->p->counters.counters_lock );
562 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_video, 1, NULL );
563 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
565 if( p_pic->date < p_dec->p_owner->i_preroll_end )
567 VoutDisplayedPicture( p_dec->p_owner->p_vout, p_pic );
571 if( p_dec->p_owner->i_preroll_end > 0 )
573 msg_Dbg( p_dec, "End of video preroll" );
574 if( p_dec->p_owner->p_vout )
575 VoutFlushPicture( p_dec->p_owner->p_vout );
577 p_dec->p_owner->i_preroll_end = -1;
580 vout_DatePicture( p_dec->p_owner->p_vout, p_pic,
582 vout_DisplayPicture( p_dec->p_owner->p_vout, p_pic );
589 * \param p_dec the decoder object
590 * \param p_block the block to decode
591 * \return VLC_SUCCESS or an error code
593 static int DecoderDecode( decoder_t *p_dec, block_t *p_block )
595 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
596 const int i_rate = p_block ? p_block->i_rate : INPUT_RATE_DEFAULT;
598 if( p_block && p_block->i_buffer <= 0 )
600 block_Release( p_block );
604 if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
606 block_t *p_sout_block;
608 while( ( p_sout_block =
609 p_dec->pf_packetize( p_dec, p_block ? &p_block : 0 ) ) )
611 if( !p_dec->p_owner->p_sout_input )
613 es_format_Copy( &p_dec->p_owner->sout, &p_dec->fmt_out );
615 p_dec->p_owner->sout.i_group = p_dec->fmt_in.i_group;
616 p_dec->p_owner->sout.i_id = p_dec->fmt_in.i_id;
617 if( p_dec->fmt_in.psz_language )
619 if( p_dec->p_owner->sout.psz_language )
620 free( p_dec->p_owner->sout.psz_language );
621 p_dec->p_owner->sout.psz_language =
622 strdup( p_dec->fmt_in.psz_language );
625 p_dec->p_owner->p_sout_input =
626 sout_InputNew( p_dec->p_owner->p_sout,
627 &p_dec->p_owner->sout );
629 if( p_dec->p_owner->p_sout_input == NULL )
631 msg_Err( p_dec, "cannot create packetizer output (%4.4s)",
632 (char *)&p_dec->p_owner->sout.i_codec );
633 p_dec->b_error = VLC_TRUE;
635 while( p_sout_block )
637 block_t *p_next = p_sout_block->p_next;
638 block_Release( p_sout_block );
639 p_sout_block = p_next;
645 while( p_sout_block )
647 block_t *p_next = p_sout_block->p_next;
649 p_sout_block->p_next = NULL;
650 p_sout_block->i_rate = i_rate;
652 sout_InputSendBuffer( p_dec->p_owner->p_sout_input,
655 p_sout_block = p_next;
658 /* For now it's enough, as only sout inpact on this flag */
659 if( p_dec->p_owner->p_sout->i_out_pace_nocontrol > 0 &&
660 p_dec->p_owner->p_input->p->b_out_pace_control )
662 msg_Dbg( p_dec, "switching to sync mode" );
663 p_dec->p_owner->p_input->p->b_out_pace_control = VLC_FALSE;
665 else if( p_dec->p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
666 !p_dec->p_owner->p_input->p->b_out_pace_control )
668 msg_Dbg( p_dec, "switching to async mode" );
669 p_dec->p_owner->p_input->p->b_out_pace_control = VLC_TRUE;
673 else if( p_dec->fmt_in.i_cat == AUDIO_ES )
675 DecoderUpdatePreroll( &p_dec->p_owner->i_preroll_end, p_block );
677 if( p_dec->p_owner->p_packetizer )
679 block_t *p_packetized_block;
680 decoder_t *p_packetizer = p_dec->p_owner->p_packetizer;
682 while( (p_packetized_block =
683 p_packetizer->pf_packetize( p_packetizer, &p_block )) )
685 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
687 es_format_Clean( &p_dec->fmt_in );
688 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
691 while( p_packetized_block )
693 block_t *p_next = p_packetized_block->p_next;
694 p_packetized_block->p_next = NULL;
695 p_packetized_block->i_rate = i_rate;
697 DecoderDecodeAudio( p_dec, p_packetized_block );
699 p_packetized_block = p_next;
705 DecoderDecodeAudio( p_dec, p_block );
708 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
710 DecoderUpdatePreroll( &p_dec->p_owner->i_preroll_end, p_block );
712 if( p_dec->p_owner->p_packetizer )
714 block_t *p_packetized_block;
715 decoder_t *p_packetizer = p_dec->p_owner->p_packetizer;
717 while( (p_packetized_block =
718 p_packetizer->pf_packetize( p_packetizer, &p_block )) )
720 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
722 es_format_Clean( &p_dec->fmt_in );
723 es_format_Copy( &p_dec->fmt_in, &p_packetizer->fmt_out );
726 while( p_packetized_block )
728 block_t *p_next = p_packetized_block->p_next;
729 p_packetized_block->p_next = NULL;
730 p_packetized_block->i_rate = i_rate;
732 DecoderDecodeVideo( p_dec, p_packetized_block );
734 p_packetized_block = p_next;
740 DecoderDecodeVideo( p_dec, p_block );
743 else if( p_dec->fmt_in.i_cat == SPU_ES )
745 input_thread_t *p_input = p_dec->p_owner->p_input;
746 vout_thread_t *p_vout;
749 DecoderUpdatePreroll( &p_dec->p_owner->i_preroll_end, p_block );
751 while( (p_spu = p_dec->pf_decode_sub( p_dec, &p_block ) ) )
753 vlc_mutex_lock( &p_input->p->counters.counters_lock );
754 stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
755 vlc_mutex_unlock( &p_input->p->counters.counters_lock );
757 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
758 if( p_vout && p_sys->p_spu_vout == p_vout )
760 /* Prerool does not work very well with subtitle */
761 if( p_spu->i_start < p_dec->p_owner->i_preroll_end &&
762 ( p_spu->i_stop <= 0 || p_spu->i_stop < p_dec->p_owner->i_preroll_end ) )
763 spu_DestroySubpicture( p_vout->p_spu, p_spu );
765 spu_DisplaySubpicture( p_vout->p_spu, p_spu );
769 msg_Warn( p_dec, "no vout found, leaking subpicture" );
772 vlc_object_release( p_vout );
777 msg_Err( p_dec, "unknown ES format" );
781 return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
785 * Destroys a decoder object
787 * \param p_dec the decoder object
790 static void DeleteDecoder( decoder_t * p_dec )
792 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %d PES in FIFO",
793 (char*)&p_dec->fmt_in.i_codec,
794 p_dec->p_owner->p_fifo->i_depth );
796 /* Free all packets still in the decoder fifo. */
797 block_FifoEmpty( p_dec->p_owner->p_fifo );
798 block_FifoRelease( p_dec->p_owner->p_fifo );
801 if( p_dec->p_owner->p_aout_input )
802 aout_DecDelete( p_dec->p_owner->p_aout, p_dec->p_owner->p_aout_input );
804 if( p_dec->p_owner->p_vout )
808 #define p_pic p_dec->p_owner->p_vout->render.pp_picture[i_pic]
809 /* Hack to make sure all the the pictures are freed by the decoder */
810 for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
813 if( p_pic->i_status == RESERVED_PICTURE )
814 vout_DestroyPicture( p_dec->p_owner->p_vout, p_pic );
815 if( p_pic->i_refcount > 0 )
816 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
820 /* We are about to die. Reattach video output to p_vlc. */
821 vout_Request( p_dec, p_dec->p_owner->p_vout, 0 );
824 if( p_dec->p_owner->p_sout_input )
826 sout_InputDelete( p_dec->p_owner->p_sout_input );
827 es_format_Clean( &p_dec->p_owner->sout );
830 if( p_dec->fmt_in.i_cat == SPU_ES )
832 vout_thread_t *p_vout;
834 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
837 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
838 p_dec->p_owner->i_spu_channel );
839 vlc_object_release( p_vout );
843 es_format_Clean( &p_dec->fmt_in );
844 es_format_Clean( &p_dec->fmt_out );
846 if( p_dec->p_owner->p_packetizer )
848 module_Unneed( p_dec->p_owner->p_packetizer,
849 p_dec->p_owner->p_packetizer->p_module );
850 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
851 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_out );
852 vlc_object_detach( p_dec->p_owner->p_packetizer );
853 vlc_object_destroy( p_dec->p_owner->p_packetizer );
856 vlc_object_detach( p_dec );
858 free( p_dec->p_owner );
861 /*****************************************************************************
862 * Buffers allocation callbacks for the decoders
863 *****************************************************************************/
864 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
866 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
867 aout_buffer_t *p_buffer;
869 if( p_sys->p_aout_input != NULL &&
870 ( p_dec->fmt_out.audio.i_rate != p_sys->audio.i_rate ||
871 p_dec->fmt_out.audio.i_original_channels !=
872 p_sys->audio.i_original_channels ||
873 p_dec->fmt_out.audio.i_bytes_per_frame !=
874 p_sys->audio.i_bytes_per_frame ) )
876 /* Parameters changed, restart the aout */
877 aout_DecDelete( p_sys->p_aout, p_sys->p_aout_input );
878 p_sys->p_aout_input = NULL;
881 if( p_sys->p_aout_input == NULL )
883 audio_sample_format_t format;
884 int i_force_dolby = config_GetInt( p_dec, "force-dolby-surround" );
886 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
887 p_sys->audio = p_dec->fmt_out.audio;
889 memcpy( &format, &p_sys->audio, sizeof( audio_sample_format_t ) );
890 if ( i_force_dolby && (format.i_original_channels&AOUT_CHAN_PHYSMASK)
891 == (AOUT_CHAN_LEFT|AOUT_CHAN_RIGHT) )
893 if ( i_force_dolby == 1 )
895 format.i_original_channels = format.i_original_channels |
896 AOUT_CHAN_DOLBYSTEREO;
898 else /* i_force_dolby == 2 */
900 format.i_original_channels = format.i_original_channels &
901 ~AOUT_CHAN_DOLBYSTEREO;
905 p_sys->p_aout_input =
906 aout_DecNew( p_dec, &p_sys->p_aout, &format, &p_dec->fmt_out.audio_replay_gain );
907 if( p_sys->p_aout_input == NULL )
909 msg_Err( p_dec, "failed to create audio output" );
910 p_dec->b_error = VLC_TRUE;
913 p_dec->fmt_out.audio.i_bytes_per_frame =
914 p_sys->audio.i_bytes_per_frame;
917 p_buffer = aout_DecNewBuffer( p_sys->p_aout, p_sys->p_aout_input,
923 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
925 aout_DecDeleteBuffer( p_dec->p_owner->p_aout,
926 p_dec->p_owner->p_aout_input, p_buffer );
929 static picture_t *vout_new_buffer( decoder_t *p_dec )
931 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
934 if( p_sys->p_vout == NULL ||
935 p_dec->fmt_out.video.i_width != p_sys->video.i_width ||
936 p_dec->fmt_out.video.i_height != p_sys->video.i_height ||
937 p_dec->fmt_out.video.i_chroma != p_sys->video.i_chroma ||
938 p_dec->fmt_out.video.i_aspect != p_sys->video.i_aspect )
940 if( !p_dec->fmt_out.video.i_width ||
941 !p_dec->fmt_out.video.i_height )
943 /* Can't create a new vout without display size */
947 if( !p_dec->fmt_out.video.i_visible_width ||
948 !p_dec->fmt_out.video.i_visible_height )
950 if( p_dec->fmt_in.video.i_visible_width &&
951 p_dec->fmt_in.video.i_visible_height )
953 p_dec->fmt_out.video.i_visible_width =
954 p_dec->fmt_in.video.i_visible_width;
955 p_dec->fmt_out.video.i_visible_height =
956 p_dec->fmt_in.video.i_visible_height;
960 p_dec->fmt_out.video.i_visible_width =
961 p_dec->fmt_out.video.i_width;
962 p_dec->fmt_out.video.i_visible_height =
963 p_dec->fmt_out.video.i_height;
967 if( p_dec->fmt_out.video.i_visible_height == 1088 &&
968 var_CreateGetBool( p_dec, "hdtv-fix" ) )
970 p_dec->fmt_out.video.i_visible_height = 1080;
971 p_dec->fmt_out.video.i_sar_num *= 135;
972 p_dec->fmt_out.video.i_sar_den *= 136;
973 msg_Warn( p_dec, "Fixing broken HDTV stream (display_height=1088)");
976 if( !p_dec->fmt_out.video.i_sar_num ||
977 !p_dec->fmt_out.video.i_sar_den )
979 p_dec->fmt_out.video.i_sar_num = p_dec->fmt_out.video.i_aspect *
980 p_dec->fmt_out.video.i_visible_height;
982 p_dec->fmt_out.video.i_sar_den = VOUT_ASPECT_FACTOR *
983 p_dec->fmt_out.video.i_visible_width;
986 vlc_ureduce( &p_dec->fmt_out.video.i_sar_num,
987 &p_dec->fmt_out.video.i_sar_den,
988 p_dec->fmt_out.video.i_sar_num,
989 p_dec->fmt_out.video.i_sar_den, 50000 );
991 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
992 p_sys->video = p_dec->fmt_out.video;
994 p_sys->p_vout = vout_Request( p_dec, p_sys->p_vout,
995 &p_dec->fmt_out.video );
996 if( p_sys->p_vout == NULL )
998 msg_Err( p_dec, "failed to create video output" );
999 p_dec->b_error = VLC_TRUE;
1003 if( p_sys->video.i_rmask )
1004 p_sys->p_vout->render.i_rmask = p_sys->video.i_rmask;
1005 if( p_sys->video.i_gmask )
1006 p_sys->p_vout->render.i_gmask = p_sys->video.i_gmask;
1007 if( p_sys->video.i_bmask )
1008 p_sys->p_vout->render.i_bmask = p_sys->video.i_bmask;
1011 /* Get a new picture */
1012 while( !(p_pic = vout_CreatePicture( p_sys->p_vout, 0, 0, 0 ) ) )
1014 int i_pic, i_ready_pic = 0;
1016 if( p_dec->b_die || p_dec->b_error )
1021 #define p_pic p_dec->p_owner->p_vout->render.pp_picture[i_pic]
1022 /* Check the decoder doesn't leak pictures */
1023 for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
1026 if( p_pic->i_status == READY_PICTURE )
1028 if( i_ready_pic++ > 0 ) break;
1032 if( p_pic->i_status != DISPLAYED_PICTURE &&
1033 p_pic->i_status != RESERVED_PICTURE &&
1034 p_pic->i_status != READY_PICTURE ) break;
1036 if( !p_pic->i_refcount && p_pic->i_status != RESERVED_PICTURE )
1039 if( i_pic == p_dec->p_owner->p_vout->render.i_pictures )
1041 msg_Err( p_dec, "decoder is leaking pictures, resetting the heap" );
1043 /* Just free all the pictures */
1044 for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
1047 if( p_pic->i_status == RESERVED_PICTURE )
1048 vout_DestroyPicture( p_dec->p_owner->p_vout, p_pic );
1049 if( p_pic->i_refcount > 0 )
1050 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
1055 msleep( VOUT_OUTMEM_SLEEP );
1061 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
1063 VoutDisplayedPicture( p_dec->p_owner->p_vout, p_pic );
1066 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
1068 vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
1071 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
1073 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
1076 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
1078 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
1079 vout_thread_t *p_vout = NULL;
1080 subpicture_t *p_subpic;
1081 int i_attempts = 30;
1083 while( i_attempts-- )
1085 if( p_dec->b_die || p_dec->b_error ) break;
1087 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1090 msleep( VOUT_DISPLAY_DELAY );
1095 msg_Warn( p_dec, "no vout found, dropping subpicture" );
1099 if( p_sys->p_spu_vout != p_vout )
1101 spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
1102 &p_sys->i_spu_channel );
1103 p_sys->p_spu_vout = p_vout;
1106 p_subpic = spu_CreateSubpicture( p_vout->p_spu );
1109 p_subpic->i_channel = p_sys->i_spu_channel;
1112 vlc_object_release( p_vout );
1117 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
1119 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
1120 vout_thread_t *p_vout = NULL;
1122 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
1123 if( !p_vout || p_sys->p_spu_vout != p_vout )
1126 vlc_object_release( p_vout );
1127 msg_Warn( p_dec, "no vout found, leaking subpicture" );
1131 spu_DestroySubpicture( p_vout->p_spu, p_subpic );
1133 vlc_object_release( p_vout );