+++ /dev/null
-/*****************************************************************************
- * vpar_pool.h : video parser/video decoders communication
- *****************************************************************************
- * Copyright (C) 1999, 2000 VideoLAN
- * $Id: vpar_pool.h,v 1.4 2001/10/11 13:19:27 massiot Exp $
- *
- * Authors: Christophe Massiot <massiot@via.ecp.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
-
-/*****************************************************************************
- * vdec_pool_t
- *****************************************************************************
- * This structure is used for the communication between the parser and the
- * decoders.
- *****************************************************************************/
-typedef struct vdec_pool_s
-{
- /* Locks */
- vlc_mutex_t lock; /* Structure data lock */
- vlc_cond_t wait_empty; /* The parser blocks there when all
- * decoder threads are busy */
- vlc_cond_t wait_undecoded; /* The decoders block there when no
- * macroblock has been given by the
- * parser */
-
- /* Video decoder threads */
- struct vdec_thread_s ** pp_vdec; /* Array of video decoder threads */
- int i_smp; /* Number of symmetrical decoder threads,
- * hence size of the pp_vdec, p_macroblocks
- * and pp_new_macroblocks array */
-
- /* Macroblocks */
- macroblock_t * p_macroblocks;
-
- /* Empty macroblocks */
- macroblock_t ** pp_empty_macroblocks; /* Empty macroblocks */
- int i_index_empty; /* Last empty macroblock */
-
- /* Undecoded macroblocks, read by the decoders */
- macroblock_t ** pp_new_macroblocks; /* Undecoded macroblocks */
- int i_index_new; /* Last undecoded macroblock */
-
- /* Undecoded macroblock, used when the parser and the decoder share the
- * same thread */
- macroblock_t mb;
- struct vdec_thread_s * p_vdec; /* Fake video decoder */
-
- /* Pointers to usual pool functions */
- void (* pf_wait_pool) ( struct vdec_pool_s * );
- macroblock_t * (* pf_new_mb) ( struct vdec_pool_s * );
- void (* pf_free_mb) ( struct vdec_pool_s *,
- struct macroblock_s * );
- void (* pf_decode_mb) ( struct vdec_pool_s *,
- struct macroblock_s * );
-
- /* Pointer to the decoding function - used for B&W switching */
- void (* pf_vdec_decode) ( struct vdec_thread_s *,
- struct macroblock_s * );
- boolean_t b_bw; /* Current value for B&W */
-
- /* Access to the plug-ins needed by the video decoder thread */
- void ( * pf_idct_init ) ( void ** );
- void ( * ppppf_motion[2][2][4] ) ( yuv_data_t *, yuv_data_t *,
- int, int );
-
- struct vpar_thread_s * p_vpar;
-} vdec_pool_t;
-
-/*****************************************************************************
- * Prototypes
- *****************************************************************************/
-void vpar_InitPool( struct vpar_thread_s * );
-void vpar_SpawnPool( struct vpar_thread_s * );
-void vpar_EndPool( struct vpar_thread_s * );
-
-/*****************************************************************************
- * vpar_GetMacroblock: In a vdec thread, get the next available macroblock
- *****************************************************************************/
-static __inline__ macroblock_t * vpar_GetMacroblock( vdec_pool_t * p_pool,
- boolean_t * pb_die )
-{
- macroblock_t * p_mb;
-
- vlc_mutex_lock( &p_pool->lock );
- while( p_pool->i_index_new == 0 && !*pb_die )
- {
- vlc_cond_wait( &p_pool->wait_undecoded, &p_pool->lock );
- }
-
- if( *pb_die )
- {
- vlc_mutex_unlock( &p_pool->lock );
- return( NULL );
- }
-
- p_mb = p_pool->pp_new_macroblocks[ --p_pool->i_index_new ];
- vlc_mutex_unlock( &p_pool->lock );
- return( p_mb );
-}
-