You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
230 lines
7.8 KiB
230 lines
7.8 KiB
/*****************************************************************************
|
|
* video_fifo.h : FIFO for the pool of video_decoders
|
|
* (c)1999 VideoLAN
|
|
*****************************************************************************
|
|
*****************************************************************************
|
|
* Requires:
|
|
* "config.h"
|
|
* "common.h"
|
|
* "vlc_thread.h"
|
|
* "video_parser.h"
|
|
* "undec_picture.h"
|
|
*****************************************************************************/
|
|
|
|
/*****************************************************************************
|
|
* Macros
|
|
*****************************************************************************/
|
|
|
|
#ifdef VDEC_SMP
|
|
/* FIXME: move to inline functions ??*/
|
|
#define VIDEO_FIFO_ISEMPTY( fifo ) ( (fifo).i_start == (fifo).i_end )
|
|
#define VIDEO_FIFO_ISFULL( fifo ) ( ( ( (fifo).i_end + 1 - (fifo).i_start )\
|
|
& VFIFO_SIZE ) == 0 )
|
|
#define VIDEO_FIFO_START( fifo ) ( (fifo).buffer[ (fifo).i_start ] )
|
|
#define VIDEO_FIFO_INCSTART( fifo ) ( (fifo).i_start = ((fifo).i_start + 1) \
|
|
& VFIFO_SIZE )
|
|
#define VIDEO_FIFO_END( fifo ) ( (fifo).buffer[ (fifo).i_end ] )
|
|
#define VIDEO_FIFO_INCEND( fifo ) ( (fifo).i_end = ((fifo).i_end + 1) \
|
|
& VFIFO_SIZE )
|
|
#endif
|
|
|
|
/*****************************************************************************
|
|
* vpar_GetMacroblock : return a macroblock to be decoded
|
|
*****************************************************************************/
|
|
static __inline__ macroblock_t * vpar_GetMacroblock( video_fifo_t * p_fifo )
|
|
{
|
|
#ifdef VDEC_SMP
|
|
macroblock_t * p_mb;
|
|
|
|
vlc_mutex_lock( &p_fifo->lock );
|
|
while( VIDEO_FIFO_ISEMPTY( *p_fifo ) )
|
|
{
|
|
vlc_cond_wait( &p_fifo->wait, &p_fifo->lock );
|
|
if( p_fifo->p_vpar->b_die )
|
|
{
|
|
vlc_mutex_unlock( &p_fifo->lock );
|
|
return( NULL );
|
|
}
|
|
}
|
|
|
|
p_mb = VIDEO_FIFO_START( *p_fifo );
|
|
VIDEO_FIFO_INCSTART( *p_fifo );
|
|
|
|
vlc_mutex_unlock( &p_fifo->lock );
|
|
|
|
return( p_mb );
|
|
#else
|
|
/* Shouldn't normally be used without SMP. */
|
|
return NULL;
|
|
#endif
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* vpar_NewMacroblock : return a buffer for the parser
|
|
*****************************************************************************/
|
|
static __inline__ macroblock_t * vpar_NewMacroblock( video_fifo_t * p_fifo )
|
|
{
|
|
#ifdef VDEC_SMP
|
|
macroblock_t * p_mb;
|
|
|
|
#define P_buffer p_fifo->p_vpar->vbuffer
|
|
vlc_mutex_lock( &P_buffer.lock );
|
|
while( P_buffer.i_index == -1 )
|
|
{
|
|
/* No more structures available. This should not happen ! */
|
|
intf_DbgMsg("vpar debug: macroblock list is empty, delaying\n");
|
|
vlc_mutex_unlock( &P_buffer.lock );
|
|
if( p_fifo->p_vpar->b_die )
|
|
{
|
|
return( NULL );
|
|
}
|
|
msleep(VPAR_OUTMEM_SLEEP);
|
|
vlc_mutex_lock( &P_buffer.lock );
|
|
}
|
|
|
|
p_mb = P_buffer.pp_mb_free[ P_buffer.i_index-- ];
|
|
|
|
vlc_mutex_unlock( &P_buffer.lock );
|
|
#undef P_buffer
|
|
return( p_mb );
|
|
#else
|
|
return( &p_fifo->buffer );
|
|
#endif
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* vpar_DecodeMacroblock : put a macroblock in the video fifo
|
|
*****************************************************************************/
|
|
static __inline__ void vpar_DecodeMacroblock( video_fifo_t * p_fifo,
|
|
macroblock_t * p_mb )
|
|
{
|
|
#ifdef VDEC_SMP
|
|
/* Place picture in the video FIFO */
|
|
vlc_mutex_lock( &p_fifo->lock );
|
|
|
|
/* By construction, the video FIFO cannot be full */
|
|
VIDEO_FIFO_END( *p_fifo ) = p_mb;
|
|
VIDEO_FIFO_INCEND( *p_fifo );
|
|
|
|
vlc_mutex_unlock( &p_fifo->lock );
|
|
#endif
|
|
/* Shouldn't normally be used without SMP. */
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* vpar_ReleaseMacroblock : release a macroblock and put the picture in the
|
|
* video output heap, if it is finished
|
|
*****************************************************************************/
|
|
static __inline__ void vpar_ReleaseMacroblock( video_fifo_t * p_fifo,
|
|
macroblock_t * p_mb )
|
|
{
|
|
#ifdef VDEC_SMP
|
|
boolean_t b_finished;
|
|
|
|
/* Unlink picture buffer */
|
|
vlc_mutex_lock( &p_mb->p_picture->lock_deccount );
|
|
p_mb->p_picture->i_deccount--;
|
|
b_finished = (p_mb->p_picture->i_deccount == 1);
|
|
vlc_mutex_unlock( &p_mb->p_picture->lock_deccount );
|
|
//fprintf(stderr, "%d ", p_mb->p_picture->i_deccount);
|
|
/* Test if it was the last block of the picture */
|
|
if( b_finished )
|
|
{
|
|
//fprintf(stderr, "Image decodee\n");
|
|
/* Mark the picture to be displayed */
|
|
vout_DisplayPicture( p_fifo->p_vpar->p_vout, p_mb->p_picture );
|
|
|
|
/* Warn Synchro for its records. */
|
|
vpar_SynchroEnd( p_fifo->p_vpar );
|
|
|
|
/* Unlink referenced pictures */
|
|
if( p_mb->p_forward != NULL )
|
|
{
|
|
vout_UnlinkPicture( p_fifo->p_vpar->p_vout, p_mb->p_forward );
|
|
}
|
|
if( p_mb->p_backward != NULL )
|
|
{
|
|
vout_UnlinkPicture( p_fifo->p_vpar->p_vout, p_mb->p_backward );
|
|
}
|
|
}
|
|
|
|
/* Release the macroblock_t structure */
|
|
#define P_buffer p_fifo->p_vpar->vbuffer
|
|
vlc_mutex_lock( &P_buffer.lock );
|
|
P_buffer.pp_mb_free[ ++P_buffer.i_index ] = p_mb;
|
|
vlc_mutex_unlock( &P_buffer.lock );
|
|
#undef P_buffer
|
|
|
|
#else
|
|
p_mb->p_picture->i_deccount--;
|
|
if( p_mb->p_picture->i_deccount == 1 )
|
|
{
|
|
/* Mark the picture to be displayed */
|
|
vout_DisplayPicture( p_fifo->p_vpar->p_vout, p_mb->p_picture );
|
|
|
|
/* Warn Synchro for its records. */
|
|
vpar_SynchroEnd( p_fifo->p_vpar );
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* vpar_DestroyMacroblock : destroy a macroblock in case of error
|
|
*****************************************************************************/
|
|
static __inline__ void vpar_DestroyMacroblock( video_fifo_t * p_fifo,
|
|
macroblock_t * p_mb )
|
|
{
|
|
#ifdef VDEC_SMP
|
|
boolean_t b_finished;
|
|
|
|
/* Unlink picture buffer */
|
|
vlc_mutex_lock( &p_mb->p_picture->lock_deccount );
|
|
p_mb->p_picture->i_deccount--;
|
|
b_finished = (p_mb->p_picture->i_deccount == 1);
|
|
vlc_mutex_unlock( &p_mb->p_picture->lock_deccount );
|
|
|
|
/* Test if it was the last block of the picture */
|
|
if( b_finished )
|
|
{
|
|
fprintf(stderr, "Image trashee\n");
|
|
/* Mark the picture to be trashed */
|
|
vout_DestroyPicture( p_fifo->p_vpar->p_vout, p_mb->p_picture );
|
|
|
|
/* Warn Synchro for its records. */
|
|
vpar_SynchroEnd( p_fifo->p_vpar );
|
|
|
|
/* Unlink referenced pictures */
|
|
if( p_mb->p_forward != NULL )
|
|
{
|
|
vout_UnlinkPicture( p_fifo->p_vpar->p_vout, p_mb->p_forward );
|
|
}
|
|
if( p_mb->p_backward != NULL )
|
|
{
|
|
vout_UnlinkPicture( p_fifo->p_vpar->p_vout, p_mb->p_backward );
|
|
}
|
|
}
|
|
|
|
/* Release the macroblock_t structure */
|
|
#define P_buffer p_fifo->p_vpar->vbuffer
|
|
vlc_mutex_lock( &P_buffer.lock );
|
|
P_buffer.pp_mb_free[ ++P_buffer.i_index ] = p_mb;
|
|
vlc_mutex_unlock( &P_buffer.lock );
|
|
#undef P_buffer
|
|
|
|
#else
|
|
p_mb->p_picture->i_deccount--;
|
|
if( p_mb->p_picture->i_deccount == 1 )
|
|
{
|
|
/* Mark the picture to be trashed */
|
|
vout_DestroyPicture( p_fifo->p_vpar->p_vout, p_mb->p_picture );
|
|
|
|
/* Warn Synchro for its records. */
|
|
vpar_SynchroEnd( p_fifo->p_vpar );
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Prototypes
|
|
*****************************************************************************/
|
|
void vpar_InitFIFO( struct vpar_thread_s * p_vpar );
|
|
|