1 /*****************************************************************************
2 * decoder.c: Functions for the management of decoders
3 *****************************************************************************
4 * Copyright (C) 1999-2004 VideoLAN
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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
24 *****************************************************************************/
26 /*****************************************************************************
28 *****************************************************************************/
32 #include <vlc/decoder.h>
34 #include <vlc/input.h>
36 #include "stream_output.h"
37 #include "input_internal.h"
39 static decoder_t * CreateDecoder( input_thread_t *, es_format_t *, int );
40 static void DeleteDecoder( decoder_t * );
42 static int DecoderThread( decoder_t * );
43 static int DecoderDecode( decoder_t * p_dec, block_t *p_block );
45 /* Buffers allocation callbacks for the decoders */
46 static aout_buffer_t *aout_new_buffer( decoder_t *, int );
47 static void aout_del_buffer( decoder_t *, aout_buffer_t * );
49 static picture_t *vout_new_buffer( decoder_t * );
50 static void vout_del_buffer( decoder_t *, picture_t * );
51 static void vout_link_picture( decoder_t *, picture_t * );
52 static void vout_unlink_picture( decoder_t *, picture_t * );
54 static subpicture_t *spu_new_buffer( decoder_t * );
55 static void spu_del_buffer( decoder_t *, subpicture_t * );
57 static es_format_t null_es_format = {0};
59 struct decoder_owner_sys_t
61 vlc_bool_t b_own_thread;
63 input_thread_t *p_input;
65 aout_instance_t *p_aout;
66 aout_input_t *p_aout_input;
68 vout_thread_t *p_vout;
70 vout_thread_t *p_spu_vout;
73 sout_instance_t *p_sout;
74 sout_packetizer_input_t *p_sout_input;
76 /* Some decoders require already packetized data (ie. not truncated) */
77 decoder_t *p_packetizer;
79 /* Current format in use by the output */
90 * Spawns a new decoder thread
92 * \param p_input the input thread
93 * \param p_es the es descriptor
94 * \return the spawned decoder object
96 decoder_t *input_DecoderNew( input_thread_t *p_input,
97 es_format_t *fmt, vlc_bool_t b_force_decoder )
99 decoder_t *p_dec = NULL;
102 /* If we are in sout mode, search for packetizer module */
103 if( p_input->p_sout && !b_force_decoder )
105 /* Create the decoder configuration structure */
106 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_PACKETIZER );
109 msg_Err( p_input, "could not create packetizer" );
115 /* Create the decoder configuration structure */
116 p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_DECODER );
119 msg_Err( p_input, "could not create decoder" );
124 if( !p_dec->p_module )
126 msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
127 "VLC probably does not support this sound or video format.",
128 (char*)&p_dec->fmt_in.i_codec );
130 DeleteDecoder( p_dec );
131 vlc_object_destroy( p_dec );
135 if( p_input->p_sout && p_input->input.b_can_pace_control &&
138 msg_Dbg( p_input, "stream out mode -> no decoder thread" );
139 p_dec->p_owner->b_own_thread = VLC_FALSE;
143 var_Get( p_input, "minimize-threads", &val );
144 p_dec->p_owner->b_own_thread = !val.b_bool;
147 if( p_dec->p_owner->b_own_thread )
150 if( fmt->i_cat == AUDIO_ES )
151 i_priority = VLC_THREAD_PRIORITY_AUDIO;
153 i_priority = VLC_THREAD_PRIORITY_VIDEO;
155 /* Spawn the decoder thread */
156 if( vlc_thread_create( p_dec, "decoder", DecoderThread,
157 i_priority, VLC_FALSE ) )
159 msg_Err( p_dec, "cannot spawn decoder thread \"%s\"",
160 p_dec->p_module->psz_object_name );
161 module_Unneed( p_dec, p_dec->p_module );
162 DeleteDecoder( p_dec );
163 vlc_object_destroy( p_dec );
172 * Kills a decoder thread and waits until it's finished
174 * \param p_input the input thread
175 * \param p_es the es descriptor
178 void input_DecoderDelete( decoder_t *p_dec )
180 p_dec->b_die = VLC_TRUE;
182 if( p_dec->p_owner->b_own_thread )
184 /* Make sure the thread leaves the function by
185 * sending it an empty block. */
186 block_t *p_block = block_New( p_dec, 0 );
187 input_DecoderDecode( p_dec, p_block );
189 vlc_thread_join( p_dec );
191 /* Don't module_Unneed() here because of the dll loader that wants
192 * close() in the same thread than open()/decode() */
197 input_DecoderDecode( p_dec, NULL );
199 module_Unneed( p_dec, p_dec->p_module );
202 /* Delete decoder configuration */
203 DeleteDecoder( p_dec );
205 /* Delete the decoder */
206 vlc_object_destroy( p_dec );
210 * Put a block_t in the decoder's fifo.
212 * \param p_dec the decoder object
213 * \param p_block the data block
215 void input_DecoderDecode( decoder_t * p_dec, block_t *p_block )
217 if( p_dec->p_owner->b_own_thread )
219 if( p_dec->p_owner->p_input->b_out_pace_control )
222 while( !p_dec->b_die && !p_dec->b_error &&
223 p_dec->p_owner->p_fifo->i_depth > 10 )
228 else if( p_dec->p_owner->p_fifo->i_size > 50000000 /* 50 MB */ )
230 /* FIXME: ideally we would check the time amount of data
231 * in the fifo instead of its size. */
232 msg_Warn( p_dec, "decoder/packetizer fifo full (data not "
233 "consummed quickly enough), resetting fifo!" );
234 block_FifoEmpty( p_dec->p_owner->p_fifo );
237 block_FifoPut( p_dec->p_owner->p_fifo, p_block );
241 if( p_dec->b_error || (p_block && p_block->i_buffer <= 0) )
243 if( p_block ) block_Release( p_block );
247 DecoderDecode( p_dec, p_block );
252 void input_DecoderDiscontinuity( decoder_t * p_dec )
257 if( p_dec->p_owner->b_own_thread )
259 block_FifoEmpty( p_dec->p_owner->p_fifo );
262 /* Send a special block */
263 p_null = block_New( p_dec, 128 );
264 p_null->i_flags |= BLOCK_FLAG_DISCONTINUITY;
265 memset( p_null->p_buffer, 0, p_null->i_buffer );
267 input_DecoderDecode( p_dec, p_null );
270 vlc_bool_t input_DecoderEmpty( decoder_t * p_dec )
272 if( p_dec->p_owner->b_own_thread && p_dec->p_owner->p_fifo->i_depth > 0 )
281 * Create a NULL packet for padding in case of a data loss
283 * \param p_input the input thread
284 * \param p_es es descriptor
287 static void input_NullPacket( input_thread_t * p_input,
288 es_descriptor_t * p_es )
291 block_t *p_block = block_New( p_input, PADDING_PACKET_SIZE );
294 memset( p_block->p_buffer, 0, PADDING_PACKET_SIZE );
295 p_block->i_flags |= BLOCK_FLAG_DISCONTINUITY;
297 block_FifoPut( p_es->p_dec->p_owner->p_fifo, p_block );
303 * Send a NULL packet to the decoders
305 * \param p_input the input thread
308 void input_EscapeDiscontinuity( input_thread_t * p_input )
311 unsigned int i_es, i;
313 for( i_es = 0; i_es < p_input->stream.i_selected_es_number; i_es++ )
315 es_descriptor_t * p_es = p_input->stream.pp_selected_es[i_es];
317 if( p_es->p_dec != NULL )
319 for( i = 0; i < PADDING_PACKET_NUMBER; i++ )
321 input_NullPacket( p_input, p_es );
329 * Send a NULL packet to the audio decoders
331 * \param p_input the input thread
334 void input_EscapeAudioDiscontinuity( input_thread_t * p_input )
337 unsigned int i_es, i;
339 for( i_es = 0; i_es < p_input->stream.i_selected_es_number; i_es++ )
341 es_descriptor_t * p_es = p_input->stream.pp_selected_es[i_es];
343 if( p_es->p_dec != NULL && p_es->i_cat == AUDIO_ES )
345 for( i = 0; i < PADDING_PACKET_NUMBER; i++ )
347 input_NullPacket( p_input, p_es );
356 * Create a decoder object
358 * \param p_input the input thread
359 * \param p_es the es descriptor
360 * \param i_object_type Object type as define in include/vlc_objects.h
361 * \return the decoder object
363 static decoder_t * CreateDecoder( input_thread_t *p_input,
364 es_format_t *fmt, int i_object_type )
368 p_dec = vlc_object_create( p_input, i_object_type );
371 msg_Err( p_input, "out of memory" );
375 p_dec->pf_decode_audio = 0;
376 p_dec->pf_decode_video = 0;
377 p_dec->pf_decode_sub = 0;
378 p_dec->pf_packetize = 0;
380 /* Initialize the decoder fifo */
381 p_dec->p_module = NULL;
384 es_format_Copy( &p_dec->fmt_in, fmt );
385 es_format_Copy( &p_dec->fmt_out, &null_es_format );
387 /* Allocate our private structure for the decoder */
388 p_dec->p_owner = malloc( sizeof( decoder_owner_sys_t ) );
389 if( p_dec->p_owner == NULL )
391 msg_Err( p_dec, "out of memory" );
394 p_dec->p_owner->b_own_thread = VLC_TRUE;
395 p_dec->p_owner->p_input = p_input;
396 p_dec->p_owner->p_aout = NULL;
397 p_dec->p_owner->p_aout_input = NULL;
398 p_dec->p_owner->p_vout = NULL;
399 p_dec->p_owner->p_spu_vout = NULL;
400 p_dec->p_owner->i_spu_channel = 0;
401 p_dec->p_owner->p_sout = p_input->p_sout;
402 p_dec->p_owner->p_sout_input = NULL;
403 p_dec->p_owner->p_packetizer = NULL;
406 if( ( p_dec->p_owner->p_fifo = block_FifoNew( p_dec ) ) == NULL )
408 msg_Err( p_dec, "out of memory" );
412 /* Set buffers allocation callbacks for the decoders */
413 p_dec->pf_aout_buffer_new = aout_new_buffer;
414 p_dec->pf_aout_buffer_del = aout_del_buffer;
415 p_dec->pf_vout_buffer_new = vout_new_buffer;
416 p_dec->pf_vout_buffer_del = vout_del_buffer;
417 p_dec->pf_picture_link = vout_link_picture;
418 p_dec->pf_picture_unlink = vout_unlink_picture;
419 p_dec->pf_spu_buffer_new = spu_new_buffer;
420 p_dec->pf_spu_buffer_del = spu_del_buffer;
422 vlc_object_attach( p_dec, p_input );
424 /* Find a suitable decoder/packetizer module */
425 if( i_object_type == VLC_OBJECT_DECODER )
426 p_dec->p_module = module_Need( p_dec, "decoder", "$codec", 0 );
428 p_dec->p_module = module_Need( p_dec, "packetizer", "$packetizer", 0 );
430 /* Check if decoder requires already packetized data */
431 if( i_object_type == VLC_OBJECT_DECODER &&
432 p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
434 p_dec->p_owner->p_packetizer =
435 vlc_object_create( p_input, VLC_OBJECT_PACKETIZER );
436 if( p_dec->p_owner->p_packetizer )
438 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_in,
441 es_format_Copy( &p_dec->p_owner->p_packetizer->fmt_out,
444 vlc_object_attach( p_dec->p_owner->p_packetizer, p_input );
446 p_dec->p_owner->p_packetizer->p_module =
447 module_Need( p_dec->p_owner->p_packetizer,
448 "packetizer", "$packetizer", 0 );
450 if( !p_dec->p_owner->p_packetizer->p_module )
452 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
453 vlc_object_detach( p_dec->p_owner->p_packetizer );
454 vlc_object_destroy( p_dec->p_owner->p_packetizer );
463 * The decoding main loop
465 * \param p_dec the decoder
468 static int DecoderThread( decoder_t * p_dec )
472 /* The decoder's main loop */
473 while( !p_dec->b_die && !p_dec->b_error )
475 if( ( p_block = block_FifoGet( p_dec->p_owner->p_fifo ) ) == NULL )
480 if( DecoderDecode( p_dec, p_block ) != VLC_SUCCESS )
486 while( !p_dec->b_die )
488 /* Trash all received PES packets */
489 p_block = block_FifoGet( p_dec->p_owner->p_fifo );
490 if( p_block ) block_Release( p_block );
493 /* We do it here because of the dll loader that wants close() in the
494 * same thread than open()/decode() */
495 module_Unneed( p_dec, p_dec->p_module );
503 * \param p_dec the decoder object
504 * \param p_block the block to decode
505 * \return VLC_SUCCESS or an error code
507 static int DecoderDecode( decoder_t *p_dec, block_t *p_block )
509 int i_rate = p_block ? p_block->i_rate : 1000;
511 if( p_block && p_block->i_buffer <= 0 )
513 block_Release( p_block );
517 if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
519 block_t *p_sout_block;
521 while( ( p_sout_block =
522 p_dec->pf_packetize( p_dec, p_block ? &p_block : 0 ) ) )
524 if( !p_dec->p_owner->p_sout_input )
526 es_format_Copy( &p_dec->p_owner->sout, &p_dec->fmt_out );
528 p_dec->p_owner->sout.i_group = p_dec->fmt_in.i_group;
529 p_dec->p_owner->sout.i_id = p_dec->fmt_in.i_id;
530 if( p_dec->fmt_in.psz_language )
532 p_dec->p_owner->sout.psz_language =
533 strdup( p_dec->fmt_in.psz_language );
536 p_dec->p_owner->p_sout_input =
537 sout_InputNew( p_dec->p_owner->p_sout,
538 &p_dec->p_owner->sout );
540 if( p_dec->p_owner->p_sout_input == NULL )
542 msg_Err( p_dec, "cannot create packetizer output" );
543 p_dec->b_error = VLC_TRUE;
545 while( p_sout_block )
547 block_t *p_next = p_sout_block->p_next;
548 block_Release( p_sout_block );
549 p_sout_block = p_next;
555 while( p_sout_block )
557 block_t *p_next = p_sout_block->p_next;
559 p_sout_block->p_next = NULL;
560 p_sout_block->i_rate = i_rate;
562 sout_InputSendBuffer( p_dec->p_owner->p_sout_input,
565 p_sout_block = p_next;
568 /* For now it's enough, as only sout inpact on this flag */
569 if( p_dec->p_owner->p_sout->i_out_pace_nocontrol > 0 &&
570 p_dec->p_owner->p_input->b_out_pace_control )
572 msg_Dbg( p_dec, "switching to synch mode" );
573 p_dec->p_owner->p_input->b_out_pace_control = VLC_FALSE;
575 else if( p_dec->p_owner->p_sout->i_out_pace_nocontrol <= 0 &&
576 !p_dec->p_owner->p_input->b_out_pace_control )
578 msg_Dbg( p_dec, "switching to asynch mode" );
579 p_dec->p_owner->p_input->b_out_pace_control = VLC_TRUE;
583 else if( p_dec->fmt_in.i_cat == AUDIO_ES )
585 aout_buffer_t *p_aout_buf;
587 if( p_dec->p_owner->p_packetizer )
589 block_t *p_packetized_block;
590 decoder_t *p_packetizer = p_dec->p_owner->p_packetizer;
592 while( (p_packetized_block =
593 p_packetizer->pf_packetize( p_packetizer, &p_block )) )
595 if( p_packetizer->fmt_out.i_extra && !p_dec->fmt_in.i_extra )
597 p_dec->fmt_in.i_extra = p_packetizer->fmt_out.i_extra;
598 p_dec->fmt_in.p_extra = malloc( p_dec->fmt_in.i_extra );
599 memcpy( p_dec->fmt_in.p_extra,
600 p_packetizer->fmt_out.p_extra,
601 p_dec->fmt_in.i_extra );
604 while( p_packetized_block )
606 block_t *p_next = p_packetized_block->p_next;
607 p_packetized_block->p_next = NULL;
608 p_packetized_block->i_rate = i_rate;
610 while( (p_aout_buf = p_dec->pf_decode_audio( p_dec,
611 &p_packetized_block )) )
613 aout_DecPlay( p_dec->p_owner->p_aout,
614 p_dec->p_owner->p_aout_input,
618 p_packetized_block = p_next;
622 else while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
624 aout_DecPlay( p_dec->p_owner->p_aout,
625 p_dec->p_owner->p_aout_input, p_aout_buf );
628 else if( p_dec->fmt_in.i_cat == VIDEO_ES )
632 if( p_dec->p_owner->p_packetizer )
634 block_t *p_packetized_block;
635 decoder_t *p_packetizer = p_dec->p_owner->p_packetizer;
637 while( (p_packetized_block =
638 p_packetizer->pf_packetize( p_packetizer, &p_block )) )
640 while( p_packetized_block )
642 block_t *p_next = p_packetized_block->p_next;
643 p_packetized_block->p_next = NULL;
644 p_packetized_block->i_rate = i_rate;
646 while( (p_pic = p_dec->pf_decode_video( p_dec,
647 &p_packetized_block )) )
649 vout_DatePicture( p_dec->p_owner->p_vout, p_pic,
651 vout_DisplayPicture( p_dec->p_owner->p_vout, p_pic );
654 p_packetized_block = p_next;
658 else while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
660 vout_DatePicture( p_dec->p_owner->p_vout, p_pic, p_pic->date );
661 vout_DisplayPicture( p_dec->p_owner->p_vout, p_pic );
664 else if( p_dec->fmt_in.i_cat == SPU_ES )
666 vout_thread_t *p_vout;
668 while( (p_spu = p_dec->pf_decode_sub( p_dec, &p_block ) ) )
670 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
673 spu_DisplaySubpicture( p_vout->p_spu, p_spu );
674 vlc_object_release( p_vout );
680 msg_Err( p_dec, "unknown ES format" );
684 return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
688 * Destroys a decoder object
690 * \param p_dec the decoder object
693 static void DeleteDecoder( decoder_t * p_dec )
695 msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %d PES in FIFO",
696 (char*)&p_dec->fmt_in.i_codec,
697 p_dec->p_owner->p_fifo->i_depth );
699 /* Free all packets still in the decoder fifo. */
700 block_FifoEmpty( p_dec->p_owner->p_fifo );
701 block_FifoRelease( p_dec->p_owner->p_fifo );
704 if( p_dec->p_owner->p_aout_input )
705 aout_DecDelete( p_dec->p_owner->p_aout, p_dec->p_owner->p_aout_input );
707 if( p_dec->p_owner->p_vout )
711 #define p_pic p_dec->p_owner->p_vout->render.pp_picture[i_pic]
712 /* Hack to make sure all the the pictures are freed by the decoder */
713 for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
716 if( p_pic->i_status == RESERVED_PICTURE )
717 vout_DestroyPicture( p_dec->p_owner->p_vout, p_pic );
718 if( p_pic->i_refcount > 0 )
719 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
723 /* We are about to die. Reattach video output to p_vlc. */
724 vout_Request( p_dec, p_dec->p_owner->p_vout, 0, 0, 0, 0 );
727 if( p_dec->p_owner->p_sout_input )
729 sout_InputDelete( p_dec->p_owner->p_sout_input );
730 es_format_Clean( &p_dec->p_owner->sout );
733 if( p_dec->fmt_in.i_cat == SPU_ES )
735 vout_thread_t *p_vout;
737 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
740 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
741 p_dec->p_owner->i_spu_channel );
742 vlc_object_release( p_vout );
746 es_format_Clean( &p_dec->fmt_in );
747 es_format_Clean( &p_dec->fmt_out );
749 if( p_dec->p_owner->p_packetizer )
751 module_Unneed( p_dec->p_owner->p_packetizer,
752 p_dec->p_owner->p_packetizer->p_module );
753 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_in );
754 es_format_Clean( &p_dec->p_owner->p_packetizer->fmt_out );
755 vlc_object_detach( p_dec->p_owner->p_packetizer );
756 vlc_object_destroy( p_dec->p_owner->p_packetizer );
759 vlc_object_detach( p_dec );
761 free( p_dec->p_owner );
764 /*****************************************************************************
765 * Buffers allocation callbacks for the decoders
766 *****************************************************************************/
767 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
769 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
770 aout_buffer_t *p_buffer;
772 if( p_sys->p_aout_input != NULL &&
773 ( p_dec->fmt_out.audio.i_rate != p_sys->audio.i_rate ||
774 p_dec->fmt_out.audio.i_original_channels !=
775 p_sys->audio.i_original_channels ||
776 p_dec->fmt_out.audio.i_bytes_per_frame !=
777 p_sys->audio.i_bytes_per_frame ) )
779 /* Parameters changed, restart the aout */
780 aout_DecDelete( p_sys->p_aout, p_sys->p_aout_input );
781 p_sys->p_aout_input = NULL;
784 if( p_sys->p_aout_input == NULL )
786 p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
787 p_sys->audio = p_dec->fmt_out.audio;
788 p_sys->p_aout_input =
789 aout_DecNew( p_dec, &p_sys->p_aout, &p_sys->audio );
790 if( p_sys->p_aout_input == NULL )
792 msg_Err( p_dec, "failed to create audio output" );
793 p_dec->b_error = VLC_TRUE;
796 p_dec->fmt_out.audio.i_bytes_per_frame =
797 p_sys->audio.i_bytes_per_frame;
800 p_buffer = aout_DecNewBuffer( p_sys->p_aout, p_sys->p_aout_input,
806 static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
808 aout_DecDeleteBuffer( p_dec->p_owner->p_aout,
809 p_dec->p_owner->p_aout_input, p_buffer );
812 static picture_t *vout_new_buffer( decoder_t *p_dec )
814 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
817 if( p_sys->p_vout == NULL ||
818 p_dec->fmt_out.video.i_width != p_sys->video.i_width ||
819 p_dec->fmt_out.video.i_height != p_sys->video.i_height ||
820 p_dec->fmt_out.video.i_chroma != p_sys->video.i_chroma ||
821 p_dec->fmt_out.video.i_aspect != p_sys->video.i_aspect )
823 if( !p_dec->fmt_out.video.i_width ||
824 !p_dec->fmt_out.video.i_height )
826 /* Can't create a new vout without display size */
830 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
831 p_sys->video = p_dec->fmt_out.video;
833 p_sys->p_vout = vout_Request( p_dec, p_sys->p_vout,
834 p_sys->video.i_width,
835 p_sys->video.i_height,
836 p_sys->video.i_chroma,
837 p_sys->video.i_aspect );
839 if( p_sys->p_vout == NULL )
841 msg_Err( p_dec, "failed to create video output" );
842 p_dec->b_error = VLC_TRUE;
846 if( p_sys->video.i_rmask )
847 p_sys->p_vout->render.i_rmask = p_sys->video.i_rmask;
848 if( p_sys->video.i_gmask )
849 p_sys->p_vout->render.i_gmask = p_sys->video.i_gmask;
850 if( p_sys->video.i_bmask )
851 p_sys->p_vout->render.i_bmask = p_sys->video.i_bmask;
854 /* Get a new picture */
855 while( !(p_pic = vout_CreatePicture( p_sys->p_vout, 0, 0, 0 ) ) )
857 int i_pic, i_ready_pic = 0;
859 if( p_dec->b_die || p_dec->b_error )
864 #define p_pic p_dec->p_owner->p_vout->render.pp_picture[i_pic]
865 /* Check the decoder doesn't leak pictures */
866 for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
869 if( p_pic->i_status == READY_PICTURE )
871 if( i_ready_pic++ > 0 ) break;
875 if( p_pic->i_status != DISPLAYED_PICTURE &&
876 p_pic->i_status != RESERVED_PICTURE &&
877 p_pic->i_status != READY_PICTURE ) break;
879 if( !p_pic->i_refcount && p_pic->i_status != RESERVED_PICTURE )
882 if( i_pic == p_dec->p_owner->p_vout->render.i_pictures )
884 msg_Err( p_dec, "decoder is leaking pictures, resetting the heap" );
886 /* Just free all the pictures */
887 for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
890 if( p_pic->i_status == RESERVED_PICTURE )
891 vout_DestroyPicture( p_dec->p_owner->p_vout, p_pic );
892 if( p_pic->i_refcount > 0 )
893 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
898 msleep( VOUT_OUTMEM_SLEEP );
904 static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
906 vout_DestroyPicture( p_dec->p_owner->p_vout, p_pic );
909 static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
911 vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
914 static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
916 vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
919 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
921 decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
922 vout_thread_t *p_vout = NULL;
923 subpicture_t *p_subpic;
926 while( i_attempts-- )
928 if( p_dec->b_die || p_dec->b_error ) break;
930 p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
933 msleep( VOUT_DISPLAY_DELAY );
938 msg_Warn( p_dec, "no vout found, dropping subpicture" );
942 if( p_sys->p_spu_vout != p_vout )
944 spu_Control( p_vout->p_spu, SPU_CHANNEL_REGISTER,
945 &p_sys->i_spu_channel );
946 p_sys->p_spu_vout = p_vout;
949 p_subpic = spu_CreateSubpicture( p_vout->p_spu );
952 p_subpic->i_channel = p_sys->i_spu_channel;
955 vlc_object_release( p_vout );
960 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
962 spu_DestroySubpicture( p_dec->p_owner->p_vout->p_spu, p_subpic );