1 /*****************************************************************************
2 * cinepak.c: cinepak video decoder
3 *****************************************************************************
4 * Copyright (C) 1999-2001 VideoLAN
5 * $Id: cinepak.c,v 1.3 2002/07/23 00:39:16 sam Exp $
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
27 #include <stdlib.h> /* malloc(), free() */
31 #include <vlc/decoder.h>
32 #include <vlc/input.h>
35 #include <unistd.h> /* getpid() */
41 #ifdef HAVE_SYS_TIMES_H
42 # include <sys/times.h>
45 #include "vdec_ext-plugins.h"
51 static int decoder_Probe ( vlc_fourcc_t * );
52 static int decoder_Run ( decoder_fifo_t * );
53 static int InitThread ( videodec_thread_t * );
54 static void EndThread ( videodec_thread_t * );
55 static void DecodeThread ( videodec_thread_t * );
58 /*****************************************************************************
60 *****************************************************************************/
61 void _M( vdec_getfunctions )( function_list_t * p_function_list )
63 p_function_list->functions.dec.pf_probe = decoder_Probe;
64 p_function_list->functions.dec.pf_run = decoder_Run;
67 /*****************************************************************************
68 * Build configuration tree.
69 *****************************************************************************/
75 SET_DESCRIPTION( "Cinepak Video Decoder" )
76 ADD_CAPABILITY( DECODER, 70 )
80 _M( vdec_getfunctions )( &p_module->p_functions->dec );
83 MODULE_DEACTIVATE_START
84 MODULE_DEACTIVATE_STOP
87 /*****************************************************************************
88 * decoder_Probe: probe the decoder and return score
89 *****************************************************************************
90 * Tries to launch a decoder and return score so that the interface is able
92 *****************************************************************************/
93 static int decoder_Probe( vlc_fourcc_t *pi_type )
95 return( ( *pi_type == VLC_FOURCC('c','v','i','d') ) ? 0 : -1 );
98 /*****************************************************************************
99 * decoder_Run: this function is called just after the thread is created
100 *****************************************************************************/
101 static int decoder_Run ( decoder_fifo_t * p_fifo )
103 videodec_thread_t *p_vdec;
106 if ( !(p_vdec = (videodec_thread_t*)malloc( sizeof(videodec_thread_t))) )
108 msg_Err( p_fifo, "out of memory" );
109 DecoderError( p_fifo );
112 memset( p_vdec, 0, sizeof( videodec_thread_t ) );
114 p_vdec->p_fifo = p_fifo;
116 if( InitThread( p_vdec ) != 0 )
118 DecoderError( p_fifo );
122 while( (!p_vdec->p_fifo->b_die) && (!p_vdec->p_fifo->b_error) )
124 DecodeThread( p_vdec );
127 if( ( b_error = p_vdec->p_fifo->b_error ) )
129 DecoderError( p_vdec->p_fifo );
143 /*****************************************************************************
145 *****************************************************************************/
147 static inline u16 GetWBE( u8 *p_buff )
149 return( (p_buff[0]<<8) + p_buff[1] );
152 static inline u32 GetDWBE( u8 *p_buff )
154 return( (p_buff[0] << 24) + ( p_buff[1] <<16 ) +
155 ( p_buff[2] <<8 ) + p_buff[3] );
158 #define GET2BYTES( p ) \
161 #define GET3BYTES( p ) \
162 (GetDWBE( p ) >> 8); p+= 3;
164 #define GET4BYTES( p ) \
170 /* get the first pes from fifo */
171 static pes_packet_t *__PES_GET( decoder_fifo_t *p_fifo )
175 vlc_mutex_lock( &p_fifo->data_lock );
177 /* if fifo is emty wait */
178 while( !p_fifo->p_first )
182 vlc_mutex_unlock( &p_fifo->data_lock );
185 vlc_cond_wait( &p_fifo->data_wait, &p_fifo->data_lock );
187 p_pes = p_fifo->p_first;
189 vlc_mutex_unlock( &p_fifo->data_lock );
194 /* free the first pes and go to next */
195 static void __PES_NEXT( decoder_fifo_t *p_fifo )
197 pes_packet_t *p_next;
199 vlc_mutex_lock( &p_fifo->data_lock );
201 p_next = p_fifo->p_first->p_next;
202 p_fifo->p_first->p_next = NULL;
203 input_DeletePES( p_fifo->p_packets_mgt, p_fifo->p_first );
204 p_fifo->p_first = p_next;
207 if( !p_fifo->p_first )
209 /* No PES in the fifo */
210 /* pp_last no longer valid */
211 p_fifo->pp_last = &p_fifo->p_first;
212 while( !p_fifo->p_first )
214 vlc_cond_signal( &p_fifo->data_wait );
215 vlc_cond_wait( &p_fifo->data_wait, &p_fifo->data_lock );
218 vlc_mutex_unlock( &p_fifo->data_lock );
221 static inline void __GetFrame( videodec_thread_t *p_vdec )
224 data_packet_t *p_data;
227 p_pes = __PES_GET( p_vdec->p_fifo );
228 p_vdec->i_pts = p_pes->i_pts;
230 while( ( !p_pes->i_nb_data )||( !p_pes->i_pes_size ) )
232 __PES_NEXT( p_vdec->p_fifo );
233 p_pes = __PES_GET( p_vdec->p_fifo );
235 p_vdec->i_framesize = p_pes->i_pes_size;
236 if( p_pes->i_nb_data == 1 )
238 p_vdec->p_framedata = p_pes->p_first->p_payload_start;
241 /* get a buffer and gather all data packet */
242 p_vdec->p_framedata = p_buffer = malloc( p_pes->i_pes_size );
243 p_data = p_pes->p_first;
246 p_vdec->p_fifo->p_vlc->pf_memcpy( p_buffer, p_data->p_payload_start,
247 p_data->p_payload_end - p_data->p_payload_start );
248 p_buffer += p_data->p_payload_end - p_data->p_payload_start;
249 p_data = p_data->p_next;
253 static inline void __NextFrame( videodec_thread_t *p_vdec )
257 p_pes = __PES_GET( p_vdec->p_fifo );
258 if( p_pes->i_nb_data != 1 )
260 free( p_vdec->p_framedata ); /* FIXME keep this buffer */
262 __PES_NEXT( p_vdec->p_fifo );
265 static int cinepak_CheckVout( vout_thread_t *p_vout,
274 if( ( p_vout->render.i_width != i_width )||
275 ( p_vout->render.i_height != i_height )||
276 ( p_vout->render.i_chroma != VLC_FOURCC('I','4','2','0') )||
277 ( p_vout->render.i_aspect != VOUT_ASPECT_FACTOR * i_width / i_height) )
289 static vout_thread_t *cinepak_CreateVout( videodec_thread_t *p_vdec,
293 vout_thread_t *p_vout;
295 if( (!i_width)||(!i_height) )
297 return( NULL ); /* Can't create a new vout without display size */
300 /* Spawn a video output if there is none. First we look for our children,
301 * then we look for any other vout that might be available. */
302 p_vout = vlc_object_find( p_vdec->p_fifo, VLC_OBJECT_VOUT,
306 p_vout = vlc_object_find( p_vdec->p_fifo, VLC_OBJECT_VOUT,
312 if( !cinepak_CheckVout( p_vout, i_width, i_height ) )
314 /* We are not interested in this format, close this vout */
315 vlc_object_detach_all( p_vout );
316 vlc_object_release( p_vout );
317 vout_DestroyThread( p_vout );
322 /* This video output is cool! Hijack it. */
323 vlc_object_detach_all( p_vout );
324 vlc_object_attach( p_vout, p_vdec->p_fifo );
325 vlc_object_release( p_vout );
331 msg_Dbg( p_vdec->p_fifo, "no vout present, spawning one" );
333 p_vout = vout_CreateThread( p_vdec->p_fifo,
336 VLC_FOURCC('I','4','2','0'),
337 VOUT_ASPECT_FACTOR * i_width / i_height );
343 void cinepak_LoadCodebook( cinepak_codebook_t *p_codebook,
347 int i, i_y[4], i_u, i_v, i_Cb, i_Cr;
350 #define FIX( x ) ( (int)( (x) * ( 1L << SCALEBITS ) + 0.5 ) )
352 for( i = 0; i < 4; i++ )
354 i_y[i] = (u8)( *(p_data++) );
358 i_u = (s8)( *(p_data++) );
359 i_v = (s8)( *(p_data++) );
368 | Y | | 1 -0.0655 0.0110 | | CY |
369 | Cb | = | 0 1.1656 -0.0062 | | CU |
370 | Cr | | 0 0.0467 1.4187 | | CV |
372 i_uv = ( FIX( -0.0655 ) * i_u + FIX( 0.0110 ) * i_v ) >> SCALEBITS;
373 for( i = 0; i < 4; i++ )
377 i_Cb = ( FIX( 1.1656 ) * i_u + FIX( -0.0062 ) * i_v ) >> SCALEBITS;
378 i_Cr = ( FIX( 0.0467 ) * i_u + FIX( 1.4187 ) * i_v ) >> SCALEBITS;
380 for( i = 0; i < 4; i++ )
382 p_codebook->i_y[i] = __MIN( __MAX( 0, i_y[i] ), 255 );
384 p_codebook->i_u = __MIN( __MAX( 0, i_Cb + 128 ), 255 );
385 p_codebook->i_v = __MIN( __MAX( 0, i_Cr + 128 ), 255 );
391 void cinepak_Getv4( cinepak_context_t *p_context,
400 u8 *p_dst_y, *p_dst_u, *p_dst_v;
401 #define PIX_SET_Y( x, y, v ) \
402 p_dst_y[(x) + (y)* p_context->i_stride[0]] = (v);
404 #define PIX_SET_UV( i, p, x, y, v ) \
405 p[(x) + (y)* (p_context->i_stride[i])] = (v);
407 for( i = 0; i < 4; i++ )
409 i_index[i] = *(p_data++);
413 p_dst_y = p_context->p_pix[0] + p_context->i_stride[0] * i_y + i_x;
414 p_dst_u = p_context->p_pix[1] + p_context->i_stride[1] * (i_y/2) + (i_x/2);
415 p_dst_v = p_context->p_pix[2] + p_context->i_stride[2] * (i_y/2) + (i_x/2);
417 for( i = 0; i < 2; i++ )
419 for( j = 0; j < 2; j ++ )
421 PIX_SET_Y( 2*j + 0, 2*i + 0,
422 p_context->codebook_v4[i_strip][i_index[j+2*i]].i_y[0]);
423 PIX_SET_Y( 2*j + 1, 2*i + 0,
424 p_context->codebook_v4[i_strip][i_index[j+2*i]].i_y[1]);
425 PIX_SET_Y( 2*j + 0, 2*i + 1,
426 p_context->codebook_v4[i_strip][i_index[j+2*i]].i_y[2]);
427 PIX_SET_Y( 2*j + 1, 2*i + 1,
428 p_context->codebook_v4[i_strip][i_index[j+2*i]].i_y[3]);
430 PIX_SET_UV( 1, p_dst_u, j, i,
431 p_context->codebook_v4[i_strip][i_index[j+2*i]].i_u );
432 PIX_SET_UV( 2, p_dst_v, j, i,
433 p_context->codebook_v4[i_strip][i_index[j+2*i]].i_v );
440 void cinepak_Getv1( cinepak_context_t *p_context,
449 u8 *p_dst_y, *p_dst_u, *p_dst_v;
450 #define PIX_SET_Y( x, y, v ) \
451 p_dst_y[(x) + (y)* p_context->i_stride[0]] = (v);
453 #define PIX_SET_UV( i,p, x, y, v ) \
454 p[(x) + (y)* (p_context->i_stride[i])] = (v);
456 i_index = *(p_data++);
459 p_dst_y = p_context->p_pix[0] + p_context->i_stride[0] * i_y + i_x;
460 p_dst_u = p_context->p_pix[1] + p_context->i_stride[1] * (i_y/2) + (i_x/2);
461 p_dst_v = p_context->p_pix[2] + p_context->i_stride[2] * (i_y/2) + (i_x/2);
463 for( i = 0; i < 2; i++ )
465 for( j = 0; j < 2; j ++ )
467 PIX_SET_Y( 2*j + 0, 2*i + 0,
468 p_context->codebook_v1[i_strip][i_index].i_y[0] );
469 PIX_SET_Y( 2*j + 1, 2*i + 0,
470 p_context->codebook_v1[i_strip][i_index].i_y[1] );
471 PIX_SET_Y( 2*j + 0, 2*i + 1,
472 p_context->codebook_v1[i_strip][i_index].i_y[2] );
473 PIX_SET_Y( 2*j + 1, 2*i + 1,
474 p_context->codebook_v1[i_strip][i_index].i_y[3] );
476 PIX_SET_UV( 1,p_dst_u, j, i,
477 p_context->codebook_v1[i_strip][i_index].i_u );
478 PIX_SET_UV( 2,p_dst_v, j, i,
479 p_context->codebook_v1[i_strip][i_index].i_v );
487 /*****************************************************************************
488 * The function that decode one frame
489 *****************************************************************************/
490 int cinepak_decode_frame( cinepak_context_t *p_context,
491 int i_length, u8 *p_data )
497 int i_width, i_height;
500 int i_strip_x1 =0, i_strip_y1=0;
501 int i_strip_x2 =0, i_strip_y2=0;
505 /* Broken header or no data */
510 i_frame_flags = *(p_data++);
511 i_frame_size = GET3BYTES( p_data );
512 i_width = GET2BYTES( p_data );
513 i_height = GET2BYTES( p_data );
514 i_frame_strips = GET2BYTES( p_data );
516 /* Check if we have a picture buffer with good size */
517 if( ( p_context->i_width != i_width )||
518 ( p_context->i_height != i_height ) )
521 for( i = 0; i < 3; i++ )
523 FREE( p_context->p_pix[i] );
526 p_context->i_width = i_width;
527 p_context->i_height = i_height;
529 p_context->i_stride[0] = ( i_width + 3)&0xfffc;
530 p_context->i_stride[1] = p_context->i_stride[2] =
531 p_context->i_stride[0] / 2;
533 p_context->i_lines[0] = ( i_height + 3 )&0xfffc;
534 p_context->i_lines[1] = p_context->i_lines[2] =
535 p_context->i_lines[0] /2;
537 for( i = 0; i < 3; i++ )
539 p_context->p_pix[i] = malloc( p_context->i_stride[i] *
540 p_context->i_lines[i] );
544 if( i_frame_size != i_length )
546 i_length = __MIN( i_length, i_frame_size );
550 if( i_frame_strips >= CINEPAK_MAXSTRIP )
552 i_frame_strips = CINEPAK_MAXSTRIP;
555 /* Now decode each strip */
557 for( i_strip = 0; i_strip < i_frame_strips; i_strip++ )
568 i_strip_id = GET2BYTES( p_data );
569 i_strip_size = GET2BYTES( p_data );
570 i_strip_size = __MIN( i_strip_size, i_length );
571 /* FIXME I don't really understand how it's work; */
572 i_strip_y1 = i_strip_y2 + GET2BYTES( p_data );
573 i_strip_x1 = GET2BYTES( p_data );
574 i_strip_y2 = i_strip_y2 + GET2BYTES( p_data );
575 i_strip_x2 = GET2BYTES( p_data );
577 i_length -= i_strip_size;
580 /* init codebook , if needed */
581 if( ( i_strip > 0 )&&( !(i_frame_flags&0x01) ) )
583 memcpy( &p_context->codebook_v1[i_strip],
584 &p_context->codebook_v1[i_strip-1],
585 sizeof(cinepak_codebook_t[256] ) );
587 memcpy( &p_context->codebook_v4[i_strip],
588 &p_context->codebook_v4[i_strip-1],
589 sizeof(cinepak_codebook_t[256] ) );
592 /* Now parse all chunk in this strip */
593 while( i_strip_size > 0 )
595 cinepak_codebook_t (*p_codebook)[CINEPAK_MAXSTRIP][256];
603 int i_x, i_y; /* (0,0) begin in fact at (x1,y1) ... */
605 i_chunk_id = GET2BYTES( p_data );
606 i_chunk_size = GET2BYTES( p_data );
607 i_chunk_size = __MIN( i_chunk_size, i_strip_size );
608 i_strip_size -= i_chunk_size;
614 if( i_chunk_size < 0 )
621 case( 0x2000 ): /* 12bits v4 Intra*/
622 case( 0x2200 ): /* 12bits v1 Intra*/
623 case( 0x2400 ): /* 8bits v4 Intra*/
624 case( 0x2600 ): /* 8bits v1 Intra */
625 i_mode = ( ( i_chunk_id&0x0400 ) == 0 );
626 p_codebook = ( i_chunk_id&0x0200 ) ?
627 &p_context->codebook_v1 :
628 &p_context->codebook_v4;
630 i_count = __MIN( i_chunk_size / ( i_mode ? 6 : 4 ), 256 );
632 for( i = 0; i < i_count; i++ )
634 cinepak_LoadCodebook( &((*p_codebook)[i_strip][i]),
636 i_mode&~p_context->b_grayscale );
637 p_data += i_mode ? 6 : 4;
638 i_chunk_size -= i_mode ? 6 : 4;
642 case( 0x2100 ): /* selective 12bits v4 Inter*/
643 case( 0x2300 ): /* selective 12bits v1 Inter*/
644 case( 0x2500 ): /* selective 8bits v4 Inter*/
645 case( 0x2700 ): /* selective 8bits v1 Inter*/
646 i_mode = ( ( i_chunk_id&0x0400 ) == 0 );
647 p_codebook = ( i_chunk_id&0x0200 ) ?
648 &p_context->codebook_v1 :
649 &p_context->codebook_v4;
652 while( (i_chunk_size > 4)&&(i_index<256))
654 i_vector_flags = GET4BYTES( p_data );
656 for( i = 0; i < 32; i++ )
658 if( ( i_chunk_size < ( i_mode ? 6 : 4 ) )||(i_index >= 256 ))
662 if( i_vector_flags&0x80000000UL )
664 cinepak_LoadCodebook( &((*p_codebook)[i_strip][i_index]),
666 i_mode&~p_context->b_grayscale );
668 p_data += i_mode ? 6 : 4;
669 i_chunk_size -= i_mode ? 6 : 4;
672 i_vector_flags <<= 1;
677 case( 0x3000 ): /* load image Intra */
678 while( (i_chunk_size >= 4 )&&(i_y<i_strip_y2-i_strip_y1) )
680 i_vector_flags = GET4BYTES( p_data );
685 for( i = 0; i < 32; i++ )
687 if( ( i_y >= i_strip_y2 - i_strip_y1)||
692 if( i_vector_flags&0x80000000UL )
694 cinepak_Getv4( p_context,
698 i_strip_x2, i_strip_y2,
705 cinepak_Getv1( p_context,
709 i_strip_x2, i_strip_y2,
716 if( i_x >= i_strip_x2 - i_strip_x1 )
721 i_vector_flags <<= 1;
726 case( 0x3100 ): /* load image Inter */
727 while( ( i_chunk_size > 4 )&&( i_y < i_strip_y2 - i_strip_y1) )
730 i_vector_flags = GET4BYTES( p_data );
732 i_mask = 0x80000000UL;
734 while((i_chunk_size > 0 )&&( i_mask )&&( i_y < i_strip_y2 - i_strip_y1 ))
736 if( i_vector_flags&i_mask)
741 if( i_chunk_size < 4 )
745 i_vector_flags = GET4BYTES( p_data );
747 i_mask = 0x80000000UL;
749 if( i_vector_flags&i_mask )
751 if( i_chunk_size < 4 ) break;
752 cinepak_Getv4( p_context,
756 i_strip_x2, i_strip_y2,
763 if( i_chunk_size < 1 ) break;
764 cinepak_Getv1( p_context,
768 i_strip_x2, i_strip_y2,
777 if( i_x >= i_strip_x2 - i_strip_x1 )
786 case( 0x3200 ): /* load intra picture but all v1*/
787 while( ( i_chunk_size > 0 )&&
788 ( i_y < i_strip_y2 - i_strip_y1) )
790 cinepak_Getv1( p_context,
794 i_strip_x2, i_strip_y2,
800 if( i_x >= i_strip_x2 - i_strip_x1 )
815 p_data += i_chunk_size ; /* skip remains bytes */
825 /*****************************************************************************
827 * Functions that initialize, decode and end the decoding process
829 *****************************************************************************/
831 /*****************************************************************************
832 * InitThread: initialize vdec output thread
833 *****************************************************************************
834 * This function is called from decoder_Run and performs the second step
835 * of the initialization. It returns 0 on success. Note that the thread's
836 * flag are not modified inside this function.
837 *****************************************************************************/
839 static int InitThread( videodec_thread_t *p_vdec )
842 /* This will be created after the first decoded frame */
843 if( !(p_vdec->p_context = malloc( sizeof( cinepak_context_t ) ) ) )
845 msg_Err( p_vdec->p_fifo, "out of memory" );
847 memset( p_vdec->p_context, 0, sizeof( cinepak_context_t ) );
849 if( config_GetInt( p_vdec->p_fifo, "grayscale" ) )
851 p_vdec->p_context->b_grayscale = 1;
855 p_vdec->p_context->b_grayscale = 0;
858 p_vdec->p_vout = NULL;
859 msg_Dbg( p_vdec->p_fifo, "cinepak decoder started" );
864 /*****************************************************************************
865 * DecodeThread: Called for decode one frame
866 *****************************************************************************/
867 static void DecodeThread( videodec_thread_t *p_vdec )
873 picture_t *p_pic; /* videolan picture */
875 __GetFrame( p_vdec );
877 i_status = cinepak_decode_frame( p_vdec->p_context,
879 p_vdec->p_framedata );
880 __NextFrame( p_vdec );
884 msg_Warn( p_vdec->p_fifo, "cannot decode one frame (%d bytes)",
885 p_vdec->i_framesize );
890 if( !cinepak_CheckVout( p_vdec->p_vout,
891 p_vdec->p_context->i_width,
892 p_vdec->p_context->i_height ) )
895 cinepak_CreateVout( p_vdec,
896 p_vdec->p_context->i_width,
897 p_vdec->p_context->i_height );
899 if( !p_vdec->p_vout )
901 msg_Err( p_vdec->p_fifo, "cannot create vout" );
902 p_vdec->p_fifo->b_error = 1; /* abort */
907 /* Send decoded frame to vout */
908 while( !(p_pic = vout_CreatePicture( p_vdec->p_vout, 0, 0, 0 ) ) )
910 if( p_vdec->p_fifo->b_die || p_vdec->p_fifo->b_error )
914 msleep( VOUT_OUTMEM_SLEEP );
917 for( i_plane = 0; i_plane < 3; i_plane++ )
921 p_dst = p_pic->p[i_plane].p_pixels;
922 p_src = p_vdec->p_context->p_pix[i_plane];
924 i_lines = __MIN( p_vdec->p_context->i_lines[i_plane],
925 p_pic->p[i_plane].i_lines );
926 for( i_line = 0; i_line < i_lines; i_line++ )
930 __MIN( p_pic->p[i_plane].i_pitch,
931 p_vdec->p_context->i_stride[i_plane] ) );
932 p_dst += p_pic->p[i_plane].i_pitch;
933 p_src += p_vdec->p_context->i_stride[i_plane];
937 vout_DatePicture( p_vdec->p_vout, p_pic, p_vdec->i_pts);
938 vout_DisplayPicture( p_vdec->p_vout, p_pic );
944 /*****************************************************************************
945 * EndThread: thread destruction
946 *****************************************************************************
947 * This function is called when the thread ends after a sucessful
949 *****************************************************************************/
950 static void EndThread( videodec_thread_t *p_vdec )
958 msg_Dbg( p_vdec->p_fifo, "cinepak decoder stopped" );
960 for( i = 0; i < 3; i++ )
962 FREE( p_vdec->p_context->p_pix[i] );
965 free( p_vdec->p_context );
967 if( p_vdec->p_vout != NULL )
969 /* We are about to die. Reattach video output to p_vlc. */
970 vlc_object_detach( p_vdec->p_vout, p_vdec->p_fifo );
971 vlc_object_attach( p_vdec->p_vout, p_vdec->p_fifo->p_vlc );