mirror of
https://code.videolan.org/videolan/vlc
synced 2024-10-07 03:56:28 +02:00
45f3f2825f
- performance boost ; - fixed the "Dual Prime Arithmetic" bug ; - 3DNow! motion compensation module ; * BTW, fixed numerous bugs ; * AC3dec statistics do not show up with --enable-stats, because I doubt they're understandable by a normal human being, and they pollute the output.
624 lines
25 KiB
C
624 lines
25 KiB
C
/*****************************************************************************
|
|
* input_ext-dec.h: structures exported to the VideoLAN decoders
|
|
*****************************************************************************
|
|
* Copyright (C) 1999, 2000 VideoLAN
|
|
* $Id: input_ext-dec.h,v 1.34 2001/08/22 17:21:45 massiot Exp $
|
|
*
|
|
* Authors: Christophe Massiot <massiot@via.ecp.fr>
|
|
* Michel Kaempf <maxx@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.
|
|
*****************************************************************************/
|
|
|
|
/* Structures exported to the decoders */
|
|
|
|
/*****************************************************************************
|
|
* data_packet_t
|
|
*****************************************************************************
|
|
* Describe a data packet.
|
|
*****************************************************************************/
|
|
typedef struct data_packet_s
|
|
{
|
|
/* Nothing before this line, the code relies on that */
|
|
byte_t * p_buffer; /* raw data packet */
|
|
long l_size; /* buffer size */
|
|
|
|
/* Decoders information */
|
|
byte_t * p_payload_start;
|
|
/* start of the PES payload in this packet */
|
|
byte_t * p_payload_end; /* guess ? :-) */
|
|
boolean_t b_discard_payload; /* is the packet messed up ? */
|
|
|
|
int * pi_refcount;
|
|
|
|
/* Used to chain the TS packets that carry data for a same PES or PSI */
|
|
struct data_packet_s * p_next;
|
|
} data_packet_t;
|
|
|
|
/*****************************************************************************
|
|
* pes_packet_t
|
|
*****************************************************************************
|
|
* Describes an PES packet, with its properties, and pointers to the TS packets
|
|
* containing it.
|
|
*****************************************************************************/
|
|
typedef struct pes_packet_s
|
|
{
|
|
/* PES properties */
|
|
boolean_t b_data_alignment; /* used to find the beginning of
|
|
* a video or audio unit */
|
|
boolean_t b_discontinuity; /* This packet doesn't follow the
|
|
* previous one */
|
|
|
|
mtime_t i_pts; /* PTS for this packet (zero if unset) */
|
|
mtime_t i_dts; /* DTS for this packet (zero if unset) */
|
|
int i_rate; /* current pace of reading
|
|
* (see stream_control.h) */
|
|
|
|
int i_pes_size; /* size of the current PES packet */
|
|
|
|
/* Pointers to packets (packets are then linked by the p_prev and
|
|
p_next fields of the data_packet_t struct) */
|
|
data_packet_t * p_first; /* The first packet contained by this
|
|
* PES (used by decoders). */
|
|
} pes_packet_t;
|
|
|
|
/*****************************************************************************
|
|
* decoder_fifo_t
|
|
*****************************************************************************
|
|
* This rotative FIFO contains PES packets that are to be decoded.
|
|
*****************************************************************************/
|
|
typedef struct decoder_fifo_s
|
|
{
|
|
/* Thread structures */
|
|
vlc_mutex_t data_lock; /* fifo data lock */
|
|
vlc_cond_t data_wait; /* fifo data conditional variable */
|
|
|
|
/* Data */
|
|
pes_packet_t * buffer[FIFO_SIZE + 1];
|
|
int i_start;
|
|
int i_end;
|
|
|
|
/* Communication interface between input and decoders */
|
|
boolean_t b_die; /* the decoder should return now */
|
|
boolean_t b_error; /* the decoder is in an error loop */
|
|
void * p_packets_mgt; /* packets management services
|
|
* data (netlist...) */
|
|
void (* pf_delete_pes)( void *, pes_packet_t * );
|
|
/* function to use when releasing a PES */
|
|
} decoder_fifo_t;
|
|
|
|
/* Macros to manage a decoder_fifo_t structure. Please remember to take
|
|
* data_lock before using them. */
|
|
#define DECODER_FIFO_ISEMPTY( fifo ) ( (fifo).i_start == (fifo).i_end )
|
|
#define DECODER_FIFO_ISFULL( fifo ) ( ( ((fifo).i_end + 1 - (fifo).i_start)\
|
|
& FIFO_SIZE ) == 0 )
|
|
#define DECODER_FIFO_START( fifo ) ( (fifo).buffer[ (fifo).i_start ] )
|
|
#define DECODER_FIFO_INCSTART( fifo ) ( (fifo).i_start = ((fifo).i_start + 1)\
|
|
& FIFO_SIZE )
|
|
#define DECODER_FIFO_END( fifo ) ( (fifo).buffer[ (fifo).i_end ] )
|
|
#define DECODER_FIFO_INCEND( fifo ) ( (fifo).i_end = ((fifo).i_end + 1) \
|
|
& FIFO_SIZE )
|
|
|
|
/*****************************************************************************
|
|
* bit_fifo_t : bit fifo descriptor
|
|
*****************************************************************************
|
|
* This type describes a bit fifo used to store bits while working with the
|
|
* input stream at the bit level.
|
|
*****************************************************************************/
|
|
typedef u32 WORD_TYPE;
|
|
|
|
typedef struct bit_fifo_s
|
|
{
|
|
/* This unsigned integer allows us to work at the bit level. This buffer
|
|
* can contain 32 bits, and the used space can be found on the MSb's side
|
|
* and the available space on the LSb's side. */
|
|
WORD_TYPE buffer;
|
|
|
|
/* Number of bits available in the bit buffer */
|
|
int i_available;
|
|
|
|
} bit_fifo_t;
|
|
|
|
/*****************************************************************************
|
|
* bit_stream_t : bit stream descriptor
|
|
*****************************************************************************
|
|
* This type, based on a PES stream, includes all the structures needed to
|
|
* handle the input stream like a bit stream.
|
|
*****************************************************************************/
|
|
typedef struct bit_stream_s
|
|
{
|
|
/*
|
|
* Bit structures
|
|
*/
|
|
bit_fifo_t fifo;
|
|
|
|
/*
|
|
* Input structures
|
|
*/
|
|
/* The decoder fifo contains the data of the PES stream */
|
|
decoder_fifo_t * p_decoder_fifo;
|
|
|
|
/* Function to jump to the next data packet */
|
|
void (* pf_next_data_packet)( struct bit_stream_s * );
|
|
|
|
/* Callback to the decoder used when changing data packets ; set
|
|
* to NULL if your decoder doesn't need it. */
|
|
void (* pf_bitstream_callback)( struct bit_stream_s *,
|
|
boolean_t b_new_pes );
|
|
/* Optional argument to the callback */
|
|
void * p_callback_arg;
|
|
|
|
/*
|
|
* Byte structures
|
|
*/
|
|
/* Current data packet (in the current PES packet of the PES stream) */
|
|
data_packet_t * p_data;
|
|
/* Pointer to the next byte that is to be read (in the current packet) */
|
|
byte_t * p_byte;
|
|
/* Pointer to the last byte that is to be read (in the current packet */
|
|
byte_t * p_end;
|
|
/* Temporary buffer in case we're not aligned when changing data packets */
|
|
WORD_TYPE i_showbits_buffer;
|
|
data_packet_t showbits_data;
|
|
} bit_stream_t;
|
|
|
|
/*****************************************************************************
|
|
* Inline functions used by the decoders to read bit_stream_t
|
|
*****************************************************************************/
|
|
|
|
/*
|
|
* DISCUSSION : How to use the bit_stream structures
|
|
*
|
|
* sizeof(WORD_TYPE) (usually 32) bits are read at the same time, thus
|
|
* minimizing the number of p_byte changes.
|
|
* Bits are read via GetBits() or ShowBits.
|
|
*
|
|
* XXX : Be aware that if, in the forthcoming functions, i_bits > 24,
|
|
* the data have to be already aligned on an 8-bit boundary, or wrong
|
|
* results will be returned. Use RealignBits() if unsure.
|
|
*/
|
|
|
|
#if (WORD_TYPE == u32)
|
|
# define WORD_AT U32_AT
|
|
# define WORD_SIGNED s32
|
|
#elif (WORD_TYPE == u64)
|
|
# define WORD_AT U64_AT
|
|
# define WORD_SIGNED s64
|
|
#else
|
|
# error Unsupported WORD_TYPE
|
|
#endif
|
|
|
|
/*****************************************************************************
|
|
* Protoypes from input_ext-dec.c
|
|
*****************************************************************************/
|
|
void UnalignedShowBits( struct bit_stream_s *, unsigned int );
|
|
void UnalignedRemoveBits( struct bit_stream_s * );
|
|
u32 UnalignedGetBits( struct bit_stream_s *, unsigned int );
|
|
|
|
/*****************************************************************************
|
|
* AlignWord : fill in the bit buffer so that the byte pointer be aligned
|
|
* on a word boundary (XXX: there must be at least sizeof(WORD_TYPE) - 1
|
|
* empty bytes in the bit buffer)
|
|
*****************************************************************************/
|
|
static __inline__ void AlignWord( bit_stream_t * p_bit_stream )
|
|
{
|
|
while( (ptrdiff_t)p_bit_stream->p_byte
|
|
& (sizeof(WORD_TYPE) - 1) )
|
|
{
|
|
if( p_bit_stream->p_byte < p_bit_stream->p_end )
|
|
{
|
|
p_bit_stream->fifo.buffer |= *(p_bit_stream->p_byte++)
|
|
<< (8 * sizeof(WORD_TYPE) - 8
|
|
- p_bit_stream->fifo.i_available);
|
|
p_bit_stream->fifo.i_available += 8;
|
|
}
|
|
else
|
|
{
|
|
p_bit_stream->pf_next_data_packet( p_bit_stream );
|
|
p_bit_stream->fifo.buffer |= *(p_bit_stream->p_byte++)
|
|
<< (8 * sizeof(WORD_TYPE) - 8
|
|
- p_bit_stream->fifo.i_available);
|
|
p_bit_stream->fifo.i_available += 8;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* ShowBits : return i_bits bits from the bit stream
|
|
*****************************************************************************/
|
|
static __inline__ u32 ShowBits( bit_stream_t * p_bit_stream,
|
|
unsigned int i_bits )
|
|
{
|
|
if( p_bit_stream->fifo.i_available >= i_bits )
|
|
{
|
|
return( p_bit_stream->fifo.buffer >> (8 * sizeof(WORD_TYPE) - i_bits) );
|
|
}
|
|
|
|
if( p_bit_stream->p_byte <= p_bit_stream->p_end - sizeof(WORD_TYPE) )
|
|
{
|
|
return( (p_bit_stream->fifo.buffer |
|
|
(WORD_AT( p_bit_stream->p_byte )
|
|
>> p_bit_stream->fifo.i_available))
|
|
>> (8 * sizeof(WORD_TYPE) - i_bits) );
|
|
}
|
|
|
|
UnalignedShowBits( p_bit_stream, i_bits );
|
|
return( p_bit_stream->fifo.buffer >> (8 * sizeof(WORD_TYPE) - i_bits) );
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* ShowSignedBits : return i_bits bits from the bit stream, using signed
|
|
* arithmetic
|
|
*****************************************************************************/
|
|
static __inline__ s32 ShowSignedBits( bit_stream_t * p_bit_stream,
|
|
unsigned int i_bits )
|
|
{
|
|
if( p_bit_stream->fifo.i_available >= i_bits )
|
|
{
|
|
return( (WORD_SIGNED)p_bit_stream->fifo.buffer
|
|
>> (8 * sizeof(WORD_TYPE) - i_bits) );
|
|
}
|
|
|
|
/* You can probably do something a little faster, but now I'm tired. */
|
|
return( (WORD_SIGNED)(ShowBits( p_bit_stream, i_bits ) << (32 - i_bits))
|
|
>> (32 - i_bits) );
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* RemoveBits : removes i_bits bits from the bit buffer
|
|
* XXX: do not use for 32 bits, see RemoveBits32
|
|
*****************************************************************************/
|
|
static __inline__ void RemoveBits( bit_stream_t * p_bit_stream,
|
|
unsigned int i_bits )
|
|
{
|
|
p_bit_stream->fifo.i_available -= i_bits;
|
|
|
|
if( p_bit_stream->fifo.i_available >= 0 )
|
|
{
|
|
p_bit_stream->fifo.buffer <<= i_bits;
|
|
return;
|
|
}
|
|
|
|
if( p_bit_stream->p_byte <= p_bit_stream->p_end - sizeof(WORD_TYPE) )
|
|
{
|
|
p_bit_stream->fifo.buffer = WORD_AT( p_bit_stream->p_byte )
|
|
<< ( -p_bit_stream->fifo.i_available );
|
|
((WORD_TYPE *)p_bit_stream->p_byte)++;
|
|
p_bit_stream->fifo.i_available += sizeof(WORD_TYPE) * 8;
|
|
return;
|
|
}
|
|
|
|
UnalignedRemoveBits( p_bit_stream );
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* RemoveBits32 : removes 32 bits from the bit buffer (and as a side effect,
|
|
* refill it)
|
|
*****************************************************************************/
|
|
#if (WORD_TYPE == u32)
|
|
static __inline__ void RemoveBits32( bit_stream_t * p_bit_stream )
|
|
{
|
|
if( p_bit_stream->p_byte <= p_bit_stream->p_end - sizeof(WORD_TYPE) )
|
|
{
|
|
if( p_bit_stream->fifo.i_available )
|
|
{
|
|
p_bit_stream->fifo.buffer = WORD_AT( p_bit_stream->p_byte )
|
|
<< (32 - p_bit_stream->fifo.i_available);
|
|
((WORD_TYPE *)p_bit_stream->p_byte)++;
|
|
return;
|
|
}
|
|
|
|
((WORD_TYPE *)p_bit_stream->p_byte)++;
|
|
return;
|
|
}
|
|
|
|
p_bit_stream->fifo.i_available -= 32;
|
|
UnalignedRemoveBits( p_bit_stream );
|
|
}
|
|
#else
|
|
# define RemoveBits32( p_bit_stream ) RemoveBits( p_bit_stream, 32 )
|
|
#endif
|
|
|
|
/*****************************************************************************
|
|
* GetBits : returns i_bits bits from the bit stream and removes them
|
|
* XXX: do not use for 32 bits, see GetBits32
|
|
*****************************************************************************/
|
|
static __inline__ u32 GetBits( bit_stream_t * p_bit_stream,
|
|
unsigned int i_bits )
|
|
{
|
|
u32 i_result;
|
|
|
|
p_bit_stream->fifo.i_available -= i_bits;
|
|
|
|
if( p_bit_stream->fifo.i_available >= 0 )
|
|
{
|
|
i_result = p_bit_stream->fifo.buffer
|
|
>> (8 * sizeof(WORD_TYPE) - i_bits);
|
|
p_bit_stream->fifo.buffer <<= i_bits;
|
|
return( i_result );
|
|
}
|
|
|
|
if( p_bit_stream->p_byte <= p_bit_stream->p_end - sizeof(WORD_TYPE) )
|
|
{
|
|
i_result = p_bit_stream->fifo.buffer
|
|
>> (8 * sizeof(WORD_TYPE) - i_bits);
|
|
p_bit_stream->fifo.buffer = WORD_AT( p_bit_stream->p_byte );
|
|
((WORD_TYPE *)p_bit_stream->p_byte)++;
|
|
i_result |= p_bit_stream->fifo.buffer
|
|
>> (8 * sizeof(WORD_TYPE)
|
|
+ p_bit_stream->fifo.i_available);
|
|
p_bit_stream->fifo.buffer <<= ( -p_bit_stream->fifo.i_available );
|
|
p_bit_stream->fifo.i_available += sizeof(WORD_TYPE) * 8;
|
|
return( i_result );
|
|
}
|
|
|
|
return UnalignedGetBits( p_bit_stream, i_bits );
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* GetSignedBits : returns i_bits bits from the bit stream and removes them,
|
|
* using signed arithmetic
|
|
* XXX: do not use for 32 bits
|
|
*****************************************************************************/
|
|
static __inline__ s32 GetSignedBits( bit_stream_t * p_bit_stream,
|
|
unsigned int i_bits )
|
|
{
|
|
if( p_bit_stream->fifo.i_available >= i_bits )
|
|
{
|
|
s32 i_result;
|
|
|
|
p_bit_stream->fifo.i_available -= i_bits;
|
|
i_result = (WORD_SIGNED)p_bit_stream->fifo.buffer
|
|
>> (8 * sizeof(WORD_TYPE) - i_bits);
|
|
p_bit_stream->fifo.buffer <<= i_bits;
|
|
return( i_result );
|
|
}
|
|
|
|
/* You can probably do something a little faster, but now I'm tired. */
|
|
return( (WORD_SIGNED)(GetBits( p_bit_stream, i_bits ) << (32 - i_bits))
|
|
>> (32 - i_bits) );
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* GetBits32 : returns 32 bits from the bit stream and removes them
|
|
*****************************************************************************/
|
|
#if (WORD_TYPE == u32)
|
|
static __inline__ u32 GetBits32( bit_stream_t * p_bit_stream )
|
|
{
|
|
u32 i_result;
|
|
|
|
if( p_bit_stream->fifo.i_available == 32 )
|
|
{
|
|
p_bit_stream->fifo.i_available = 0;
|
|
i_result = p_bit_stream->fifo.buffer;
|
|
p_bit_stream->fifo.buffer = 0;
|
|
return( i_result );
|
|
}
|
|
|
|
if( p_bit_stream->p_byte <= p_bit_stream->p_end - sizeof(WORD_TYPE) )
|
|
{
|
|
if( p_bit_stream->fifo.i_available )
|
|
{
|
|
i_result = p_bit_stream->fifo.buffer;
|
|
p_bit_stream->fifo.buffer = WORD_AT( p_bit_stream->p_byte );
|
|
((WORD_TYPE *)p_bit_stream->p_byte)++;
|
|
i_result |= p_bit_stream->fifo.buffer
|
|
>> (p_bit_stream->fifo.i_available);
|
|
p_bit_stream->fifo.buffer <<= (32 - p_bit_stream->fifo.i_available);
|
|
return( i_result );
|
|
}
|
|
|
|
i_result = WORD_AT( p_bit_stream->p_byte );
|
|
((WORD_TYPE *)p_bit_stream->p_byte)++;
|
|
return( i_result );
|
|
}
|
|
|
|
p_bit_stream->fifo.i_available -= 32;
|
|
return UnalignedGetBits( p_bit_stream, 32 );
|
|
}
|
|
#else
|
|
# define GetBits32( p_bit_stream ) GetBits( p_bit_stream, 32 )
|
|
#endif
|
|
|
|
/*****************************************************************************
|
|
* RealignBits : realigns the bit buffer on an 8-bit boundary
|
|
*****************************************************************************/
|
|
static __inline__ void RealignBits( bit_stream_t * p_bit_stream )
|
|
{
|
|
p_bit_stream->fifo.buffer <<= (p_bit_stream->fifo.i_available & 0x7);
|
|
p_bit_stream->fifo.i_available &= ~0x7;
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
* GetChunk : reads a large chunk of data
|
|
*****************************************************************************
|
|
* The position in the stream must be byte-aligned, if unsure call
|
|
* RealignBits(). p_buffer must point to a buffer at least as big as i_buf_len
|
|
* otherwise your code will crash.
|
|
*****************************************************************************/
|
|
static __inline__ void GetChunk( bit_stream_t * p_bit_stream,
|
|
byte_t * p_buffer, size_t i_buf_len )
|
|
{
|
|
ptrdiff_t i_available;
|
|
|
|
/* We need to take care because i_buf_len may be < 4. */
|
|
while( p_bit_stream->fifo.i_available > 0 && i_buf_len )
|
|
{
|
|
*p_buffer = p_bit_stream->fifo.buffer >> (8 * sizeof(WORD_TYPE) - 8);
|
|
p_buffer++;
|
|
i_buf_len--;
|
|
p_bit_stream->fifo.buffer <<= 8;
|
|
p_bit_stream->fifo.i_available -= 8;
|
|
}
|
|
|
|
if( (i_available = p_bit_stream->p_end - p_bit_stream->p_byte)
|
|
>= i_buf_len )
|
|
{
|
|
memcpy( p_buffer, p_bit_stream->p_byte, i_buf_len );
|
|
p_bit_stream->p_byte += i_buf_len;
|
|
}
|
|
else
|
|
{
|
|
do
|
|
{
|
|
memcpy( p_buffer, p_bit_stream->p_byte, i_available );
|
|
p_bit_stream->p_byte = p_bit_stream->p_end;
|
|
p_buffer += i_available;
|
|
i_buf_len -= i_available;
|
|
p_bit_stream->pf_next_data_packet( p_bit_stream );
|
|
}
|
|
while( (i_available = p_bit_stream->p_end - p_bit_stream->p_byte)
|
|
<= i_buf_len && !p_bit_stream->p_decoder_fifo->b_die );
|
|
|
|
if( i_buf_len )
|
|
{
|
|
memcpy( p_buffer, p_bit_stream->p_byte, i_buf_len );
|
|
p_bit_stream->p_byte += i_buf_len;
|
|
}
|
|
}
|
|
|
|
if( p_bit_stream->p_byte <= p_bit_stream->p_end - sizeof(WORD_TYPE) )
|
|
{
|
|
AlignWord( p_bit_stream );
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* The following functions are now deprecated.
|
|
*/
|
|
|
|
static __inline__ byte_t _GetByte( bit_stream_t * p_bit_stream )
|
|
{
|
|
if ( p_bit_stream->p_byte >= p_bit_stream->p_end )
|
|
{
|
|
p_bit_stream->pf_next_data_packet( p_bit_stream );
|
|
}
|
|
|
|
return( *(p_bit_stream->p_byte++) );
|
|
}
|
|
|
|
static __inline__ void NeedBits( bit_stream_t * p_bit_stream, int i_bits )
|
|
{
|
|
while ( p_bit_stream->fifo.i_available < i_bits )
|
|
{
|
|
p_bit_stream->fifo.buffer |= ((WORD_TYPE)_GetByte( p_bit_stream ))
|
|
<< (8 * sizeof(WORD_TYPE) - 8
|
|
- p_bit_stream->fifo.i_available);
|
|
p_bit_stream->fifo.i_available += 8;
|
|
}
|
|
}
|
|
|
|
static __inline__ void DumpBits( bit_stream_t * p_bit_stream, int i_bits )
|
|
{
|
|
p_bit_stream->fifo.buffer <<= i_bits;
|
|
p_bit_stream->fifo.i_available -= i_bits;
|
|
}
|
|
|
|
|
|
/*
|
|
* Communication interface between input and decoders
|
|
*/
|
|
|
|
/*****************************************************************************
|
|
* decoder_config_t
|
|
*****************************************************************************
|
|
* Standard pointers given to the decoders as a toolbox.
|
|
*****************************************************************************/
|
|
typedef struct decoder_config_s
|
|
{
|
|
u16 i_id;
|
|
u8 i_type; /* type of the elementary stream */
|
|
|
|
struct stream_ctrl_s * p_stream_ctrl;
|
|
struct decoder_fifo_s * p_decoder_fifo;
|
|
void (* pf_init_bit_stream)( struct bit_stream_s *,
|
|
struct decoder_fifo_s *,
|
|
void (* pf_bitstream_callback)( struct bit_stream_s *,
|
|
boolean_t ),
|
|
void * );
|
|
} decoder_config_t;
|
|
|
|
/*****************************************************************************
|
|
* vdec_config_t
|
|
*****************************************************************************
|
|
* Pointers given to video decoders threads.
|
|
*****************************************************************************/
|
|
struct vout_thread_s;
|
|
|
|
typedef struct vdec_config_s
|
|
{
|
|
struct picture_s * (* pf_create_picture)( struct vout_thread_s *,
|
|
int i_type, int i_width,
|
|
int i_height );
|
|
void (* pf_destroy_picture)( struct vout_thread_s *,
|
|
struct picture_s * );
|
|
void (* pf_display_picture)( struct vout_thread_s *,
|
|
struct picture_s * );
|
|
void (* pf_date_picture)( struct vout_thread_s *,
|
|
struct picture_s *, mtime_t date );
|
|
void (* pf_link_picture)( struct vout_thread_s *,
|
|
struct picture_s *, mtime_t date );
|
|
void (* pf_unlink_picture)( struct vout_thread_s *,
|
|
struct picture_s *, mtime_t date );
|
|
struct subpicture_s *(* pf_create_subpicture)( struct vout_thread_s *,
|
|
int i_type, int i_size );
|
|
void (* pf_destroy_subpicture)( struct vout_thread_s *,
|
|
struct subpicture_s * );
|
|
void (* pf_display_subpicture)( struct vout_thread_s *,
|
|
struct subpicture_s * );
|
|
|
|
decoder_config_t decoder_config;
|
|
} vdec_config_t;
|
|
|
|
/*****************************************************************************
|
|
* adec_config_t
|
|
*****************************************************************************
|
|
* Pointers given to audio decoders threads.
|
|
*****************************************************************************/
|
|
typedef struct adec_config_s
|
|
{
|
|
struct aout_fifo_s * (* pf_create_fifo)( struct aout_fifo_s * );
|
|
void (* pf_destroy_fifo)( void );
|
|
|
|
decoder_config_t decoder_config;
|
|
} adec_config_t;
|
|
|
|
|
|
/*
|
|
* Communication interface between decoders and input
|
|
*/
|
|
|
|
/*****************************************************************************
|
|
* decoder_capabilities_t
|
|
*****************************************************************************
|
|
* Structure returned by a call to GetCapabilities() of the decoder.
|
|
*****************************************************************************/
|
|
typedef struct decoder_capabilities_s
|
|
{
|
|
int i_dec_type;
|
|
u8 i_stream_type; /* == i_type in es_descriptor_t */
|
|
int i_weight; /* for a given stream type, the decoder
|
|
* with higher weight will be spawned */
|
|
|
|
vlc_thread_t (* pf_create_thread)( void * );
|
|
} decoder_capabilities_t;
|
|
|
|
/* Decoder types */
|
|
#define NONE_D 0
|
|
#define VIDEO_D 1
|
|
#define AUDIO_D 2
|