X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=include%2Finput_ext-dec.h;h=12c8ceadb4e046130f476317c3cfe7a660a7c47d;hb=7bb574fdf5724bee95a011cf96f33c95f1ff8645;hp=f500b9a59083b33183284e7e77b52c6c9d8cfc88;hpb=f3f860ca5d69aa95060c073fa912f653478d35b6;p=vlc diff --git a/include/input_ext-dec.h b/include/input_ext-dec.h index f500b9a590..12c8ceadb4 100644 --- a/include/input_ext-dec.h +++ b/include/input_ext-dec.h @@ -1,8 +1,8 @@ /***************************************************************************** * input_ext-dec.h: structures exported to the VideoLAN decoders ***************************************************************************** - * Copyright (C) 1999, 2000 VideoLAN - * $Id: input_ext-dec.h,v 1.27 2001/04/05 16:37:15 asmax Exp $ + * Copyright (C) 1999-2001 VideoLAN + * $Id: input_ext-dec.h,v 1.80 2003/09/02 20:19:25 gbazin Exp $ * * Authors: Christophe Massiot * Michel Kaempf @@ -22,6 +22,9 @@ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. *****************************************************************************/ +#ifndef _VLC_INPUT_EXT_DEC_H +#define _VLC_INPUT_EXT_DEC_H 1 + /* Structures exported to the decoders */ /***************************************************************************** @@ -29,22 +32,22 @@ ***************************************************************************** * Describe a data packet. *****************************************************************************/ -typedef struct data_packet_s +struct data_packet_t { - /* Nothing before this line, the code relies on that */ - byte_t * p_buffer; /* raw data packet */ - - /* 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 ? */ + /* Used to chain the packets that carry data for a same PES or PSI */ + data_packet_t * p_next; - int * pi_refcount; + /* start of the PS or TS packet */ + byte_t * p_demux_start; + /* start of the PES payload in this packet */ + byte_t * p_payload_start; + byte_t * p_payload_end; /* guess ? :-) */ + /* is the packet messed up ? */ + vlc_bool_t b_discard_payload; - /* Used to chain the TS packets that carry data for a same PES or PSI */ - struct data_packet_s * p_next; -} data_packet_t; + /* pointer to the real data */ + data_buffer_t * p_buffer; +}; /***************************************************************************** * pes_packet_t @@ -52,63 +55,86 @@ typedef struct data_packet_s * Describes an PES packet, with its properties, and pointers to the TS packets * containing it. *****************************************************************************/ -typedef struct pes_packet_s +struct pes_packet_t { + /* Chained list to the next PES packet (depending on the context) */ + pes_packet_t * p_next; + /* 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 */ + vlc_bool_t b_data_alignment; /* used to find the beginning of + * a video or audio unit */ + vlc_bool_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) */ + 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 reading pace (see stream_control.h) */ - int i_pes_size; /* size of the current PES packet */ + unsigned 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 + /* Chained list to packets */ + data_packet_t * p_first; /* The first packet contained by this * PES (used by decoders). */ -} pes_packet_t; + data_packet_t * p_last; /* The last packet contained by this + * PES (used by the buffer allocator) */ + unsigned int i_nb_data; /* Number of data packets in the chained list */ +}; /***************************************************************************** * decoder_fifo_t ***************************************************************************** * This rotative FIFO contains PES packets that are to be decoded. *****************************************************************************/ -typedef struct decoder_fifo_s +struct decoder_fifo_t { + VLC_COMMON_MEMBERS + /* Thread structures */ - vlc_mutex_t data_lock; /* fifo data lock */ - vlc_cond_t data_wait; /* fifo data conditional variable */ + 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; + pes_packet_t * p_first; + pes_packet_t ** pp_last; + int i_depth; /* number of PES packets in the stack */ /* 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 ) + input_buffers_t *p_packets_mgt; /* packets management services data */ + + /* Standard pointers given to the decoders as a toolbox. */ + uint16_t i_id; + vlc_fourcc_t i_fourcc; + es_sys_t * p_demux_data; + stream_ctrl_t * p_stream_ctrl; + sout_instance_t * p_sout; + void * p_waveformatex; + void * p_bitmapinfoheader; + + decoder_t * p_dec; +}; + +/***************************************************************************** + * decoder_t + ***************************************************************************** + * The decoder descriptor. + *****************************************************************************/ +struct decoder_t +{ + VLC_COMMON_MEMBERS + + /* Module properties */ + module_t * p_module; + decoder_sys_t * p_sys; + int ( * pf_init ) ( decoder_t * ); + int ( * pf_decode )( decoder_t *, block_t * ); + int ( * pf_end ) ( decoder_t * ); + + /* Input properties */ + decoder_fifo_t * p_fifo; /* stores the PES stream data */ + + /* Tmp field for old decoder api */ + int ( * pf_run ) ( decoder_fifo_t * ); +}; /***************************************************************************** * bit_fifo_t : bit fifo descriptor @@ -116,9 +142,9 @@ typedef struct decoder_fifo_s * 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 uint32_t WORD_TYPE; -typedef struct bit_fifo_s +typedef struct bit_fifo_t { /* 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 @@ -136,42 +162,46 @@ typedef struct bit_fifo_s * 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 +struct bit_stream_t { /* * Bit structures */ - bit_fifo_t fifo; + 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 * ); + decoder_fifo_t * p_decoder_fifo; /* 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 ); + void (* pf_bitstream_callback)( bit_stream_t *, vlc_bool_t ); /* Optional argument to the callback */ - void * p_callback_arg; + void * p_callback_arg; + + /* + * PTS retrieval + */ + mtime_t i_pts, i_dts; + byte_t * p_pts_validity; /* * Byte structures */ - /* Current data packet (in the current PES packet of the PES stream) */ + /* Current PES packet (extracted from the PES stream) */ + pes_packet_t * p_pes; + /* Current data packet (in the current PES packet) */ 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. */ + /* 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 @@ -189,27 +219,37 @@ typedef struct bit_stream_s * results will be returned. Use RealignBits() if unsure. */ -#if (WORD_TYPE == u32) +#if (WORD_TYPE == uint32_t) # define WORD_AT U32_AT -#elif (WORD_TYPE == u64) +# define WORD_SIGNED int32_t +#elif (WORD_TYPE == uint64_t) # define WORD_AT U64_AT +# define WORD_SIGNED int64_t #else # error Unsupported WORD_TYPE #endif /***************************************************************************** - * Protoypes from input_ext-dec.c + * Prototypes from input_ext-dec.c *****************************************************************************/ -u32 UnalignedShowBits( struct bit_stream_s *, unsigned int ); -void UnalignedRemoveBits( struct bit_stream_s * ); -u32 UnalignedGetBits( struct bit_stream_s *, unsigned int ); +VLC_EXPORT( void, input_ExtractPES, ( decoder_fifo_t *, pes_packet_t ** ) ); +VLC_EXPORT( void, input_DeletePES, ( input_buffers_t *, pes_packet_t * ) ); +VLC_EXPORT( int, InitBitstream, ( bit_stream_t *, decoder_fifo_t *, void ( * )( bit_stream_t *, vlc_bool_t ), void * p_callback_arg ) ); +VLC_EXPORT( vlc_bool_t, NextDataPacket, ( decoder_fifo_t *, bit_stream_t * ) ); +VLC_EXPORT( void, BitstreamNextDataPacket, ( bit_stream_t * ) ); +VLC_EXPORT( uint32_t, UnalignedShowBits, ( bit_stream_t *, unsigned int ) ); +VLC_EXPORT( void, UnalignedRemoveBits, ( bit_stream_t * ) ); +VLC_EXPORT( uint32_t, UnalignedGetBits, ( bit_stream_t *, unsigned int ) ); +VLC_EXPORT( void, CloseBitstream, ( bit_stream_t * ) ); +VLC_EXPORT( void, CurrentPTS, ( bit_stream_t *, mtime_t *, mtime_t * ) ); +VLC_EXPORT( void, NextPTS, ( bit_stream_t *, mtime_t *, mtime_t * ) ); /***************************************************************************** * 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 ) +static inline void AlignWord( bit_stream_t * p_bit_stream ) { while( (ptrdiff_t)p_bit_stream->p_byte & (sizeof(WORD_TYPE) - 1) ) @@ -223,7 +263,7 @@ static __inline__ void AlignWord( bit_stream_t * p_bit_stream ) } else { - p_bit_stream->pf_next_data_packet( p_bit_stream ); + BitstreamNextDataPacket( p_bit_stream ); p_bit_stream->fifo.buffer |= *(p_bit_stream->p_byte++) << (8 * sizeof(WORD_TYPE) - 8 - p_bit_stream->fifo.i_available); @@ -235,10 +275,10 @@ static __inline__ void AlignWord( bit_stream_t * p_bit_stream ) /***************************************************************************** * ShowBits : return i_bits bits from the bit stream *****************************************************************************/ -static __inline__ u32 ShowBits( bit_stream_t * p_bit_stream, - unsigned int i_bits ) +static inline uint32_t ShowBits( bit_stream_t * p_bit_stream, + unsigned int i_bits ) { - if( p_bit_stream->fifo.i_available >= i_bits ) + if( (unsigned int)p_bit_stream->fifo.i_available >= i_bits ) { return( p_bit_stream->fifo.buffer >> (8 * sizeof(WORD_TYPE) - i_bits) ); } @@ -251,15 +291,33 @@ static __inline__ u32 ShowBits( bit_stream_t * p_bit_stream, >> (8 * sizeof(WORD_TYPE) - i_bits) ); } - return UnalignedShowBits( p_bit_stream, i_bits ); + return( UnalignedShowBits( p_bit_stream, i_bits ) ); +} + +/***************************************************************************** + * ShowSignedBits : return i_bits bits from the bit stream, using signed + * arithmetic + *****************************************************************************/ +static inline int32_t ShowSignedBits( bit_stream_t * p_bit_stream, + unsigned int i_bits ) +{ + if( (unsigned int)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 ) +static inline void RemoveBits( bit_stream_t * p_bit_stream, + unsigned int i_bits ) { p_bit_stream->fifo.i_available -= i_bits; @@ -273,7 +331,8 @@ static __inline__ void RemoveBits( bit_stream_t * p_bit_stream, { 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->p_byte = + (byte_t *) ( ((WORD_TYPE *)p_bit_stream->p_byte) + 1 ); p_bit_stream->fifo.i_available += sizeof(WORD_TYPE) * 8; return; } @@ -285,8 +344,8 @@ static __inline__ void RemoveBits( bit_stream_t * 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 (WORD_TYPE == uint32_t) +static inline void RemoveBits32( bit_stream_t * p_bit_stream ) { if( p_bit_stream->p_byte <= p_bit_stream->p_end - sizeof(WORD_TYPE) ) { @@ -294,11 +353,13 @@ static __inline__ void RemoveBits32( bit_stream_t * p_bit_stream ) { 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)++; + p_bit_stream->p_byte = + (byte_t *) ( ((WORD_TYPE *)p_bit_stream->p_byte) + 1 ); return; } - ((WORD_TYPE *)p_bit_stream->p_byte)++; + p_bit_stream->p_byte = + (byte_t *) ( ((WORD_TYPE *)p_bit_stream->p_byte) + 1 ); return; } @@ -313,10 +374,10 @@ static __inline__ void RemoveBits32( bit_stream_t * p_bit_stream ) * 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 ) +static inline uint32_t GetBits( bit_stream_t * p_bit_stream, + unsigned int i_bits ) { - u32 i_result; + uint32_t i_result; p_bit_stream->fifo.i_available -= i_bits; @@ -333,7 +394,8 @@ static __inline__ u32 GetBits( bit_stream_t * p_bit_stream, 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)++; + p_bit_stream->p_byte = + (byte_t *) ( ((WORD_TYPE *)p_bit_stream->p_byte) + 1 ); i_result |= p_bit_stream->fifo.buffer >> (8 * sizeof(WORD_TYPE) + p_bit_stream->fifo.i_available); @@ -345,13 +407,37 @@ static __inline__ u32 GetBits( bit_stream_t * p_bit_stream, 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 int32_t GetSignedBits( bit_stream_t * p_bit_stream, + unsigned int i_bits ) +{ + if( (unsigned int)p_bit_stream->fifo.i_available >= i_bits ) + { + int32_t 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 ) +#if (WORD_TYPE == uint32_t) +static inline uint32_t GetBits32( bit_stream_t * p_bit_stream ) { - u32 i_result; + uint32_t i_result; if( p_bit_stream->fifo.i_available == 32 ) { @@ -367,7 +453,8 @@ static __inline__ u32 GetBits32( bit_stream_t * p_bit_stream ) { 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)++; + p_bit_stream->p_byte = + (byte_t *) ( ((WORD_TYPE *)p_bit_stream->p_byte) + 1 ); 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); @@ -375,7 +462,8 @@ static __inline__ u32 GetBits32( bit_stream_t * p_bit_stream ) } i_result = WORD_AT( p_bit_stream->p_byte ); - ((WORD_TYPE *)p_bit_stream->p_byte)++; + p_bit_stream->p_byte = + (byte_t *) ( ((WORD_TYPE *)p_bit_stream->p_byte) + 1 ); return( i_result ); } @@ -389,7 +477,7 @@ static __inline__ u32 GetBits32( bit_stream_t * p_bit_stream ) /***************************************************************************** * RealignBits : realigns the bit buffer on an 8-bit boundary *****************************************************************************/ -static __inline__ void RealignBits( bit_stream_t * p_bit_stream ) +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; @@ -400,45 +488,51 @@ static __inline__ void RealignBits( bit_stream_t * p_bit_stream ) * GetChunk : reads a large chunk of data ***************************************************************************** * The position in the stream must be byte-aligned, if unsure call - * RealignBits(). p_buffer must to a buffer at least as big as i_buf_len + * 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 ) +static inline void GetChunk( bit_stream_t * p_bit_stream, + byte_t * p_buffer, size_t i_buf_len ) { ptrdiff_t i_available; - if( p_bit_stream->fifo.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 ) { - *((WORD_TYPE *)p_buffer) = WORD_AT( &p_bit_stream->fifo.buffer ); - p_buffer += p_bit_stream->fifo.i_available >> 3; - i_buf_len -= p_bit_stream->fifo.i_available >> 3; - p_bit_stream->fifo.buffer = 0; - p_bit_stream->fifo.i_available = 0; + *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 ) + i_available = p_bit_stream->p_end - p_bit_stream->p_byte; + if( i_available >= (ptrdiff_t)i_buf_len ) { - memcpy( p_buffer, p_bit_stream->p_byte, i_buf_len ); + p_bit_stream->p_decoder_fifo->p_vlc->pf_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_decoder_fifo->p_vlc->pf_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 ); + BitstreamNextDataPacket( p_bit_stream ); + if( p_bit_stream->p_decoder_fifo->b_die ) + return; } while( (i_available = p_bit_stream->p_end - p_bit_stream->p_byte) - <= i_buf_len && !p_bit_stream->p_decoder_fifo->b_die ); + <= (ptrdiff_t)i_buf_len ); if( i_buf_len ) { - memcpy( p_buffer, p_bit_stream->p_byte, i_buf_len ); + p_bit_stream->p_decoder_fifo->p_vlc->pf_memcpy( p_buffer, + p_bit_stream->p_byte, i_buf_len ); p_bit_stream->p_byte += i_buf_len; } } @@ -450,131 +544,13 @@ static __inline__ void GetChunk( bit_stream_t * 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 * ); -} decoder_config_t; - -/***************************************************************************** - * vdec_config_t - ***************************************************************************** - * Pointers given to video decoders threads. + * Prototypes from input_dec.c *****************************************************************************/ -struct vout_thread_s; - -typedef struct vdec_config_s -{ - struct vout_thread_s * p_vout; - - 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. - *****************************************************************************/ -struct aout_thread_s; - -typedef struct adec_config_s -{ - struct aout_thread_s * p_aout; - - struct aout_fifo_s * (* pf_create_fifo)( struct aout_thread_s *, - struct aout_fifo_s * ); - void (* pf_destroy_fifo)( struct aout_thread_s *); - - decoder_config_t decoder_config; -} adec_config_t; +VLC_EXPORT( void, DecoderError, ( decoder_fifo_t * p_fifo ) ); - -/* - * 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 +#endif /* "input_ext-dec.h" */