X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=include%2Finput_ext-dec.h;h=75e3e06556df851e09df116ac4e21bc301114939;hb=3658e6a17cfa3558dc88273ac62bf1f6d0b5ddf4;hp=eea1a0ebc1009860fb9bfbd8e1fe62d6fb906a8a;hpb=4a0dae0183e6571cfee4bb5511189da33e67dc03;p=vlc diff --git a/include/input_ext-dec.h b/include/input_ext-dec.h index eea1a0ebc1..75e3e06556 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 1.39 2001/11/15 17:39:12 sam Exp $ + * Copyright (C) 1999-2001 VideoLAN + * $Id: input_ext-dec.h,v 1.79 2003/03/04 13:21:19 massiot Exp $ * * Authors: Christophe Massiot * Michel Kaempf @@ -22,16 +22,8 @@ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. *****************************************************************************/ -/* ES streams types - see ISO/IEC 13818-1 table 2-29 numbers */ -#define MPEG1_VIDEO_ES 0x01 -#define MPEG2_VIDEO_ES 0x02 -#define MPEG1_AUDIO_ES 0x03 -#define MPEG2_AUDIO_ES 0x04 -#define AC3_AUDIO_ES 0x81 -/* These ones might violate the norm : */ -#define DVD_SPU_ES 0x82 -#define LPCM_AUDIO_ES 0x83 -#define UNKNOWN_ES 0xFF +#ifndef _VLC_INPUT_EXT_DEC_H +#define _VLC_INPUT_EXT_DEC_H 1 /* Structures exported to the decoders */ @@ -40,23 +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 */ - long l_size; /* buffer size */ + /* Used to chain the packets that carry data for a same PES or PSI */ + data_packet_t * p_next; - /* 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 ? */ + /* 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; - 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; + /* pointer to the real data */ + data_buffer_t * p_buffer; +}; /***************************************************************************** * pes_packet_t @@ -64,63 +55,65 @@ 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; + + /* Module properties */ + module_t * p_module; + int ( * pf_run ) ( decoder_fifo_t * ); +}; /***************************************************************************** * bit_fifo_t : bit fifo descriptor @@ -128,9 +121,9 @@ 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 @@ -148,33 +141,37 @@ 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; @@ -183,7 +180,7 @@ typedef struct bit_stream_s /* 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 @@ -201,31 +198,37 @@ 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 -# define WORD_SIGNED s32 -#elif (WORD_TYPE == u64) +# define WORD_SIGNED int32_t +#elif (WORD_TYPE == uint64_t) # define WORD_AT U64_AT -# define WORD_SIGNED s64 +# define WORD_SIGNED int64_t #else # error Unsupported WORD_TYPE #endif /***************************************************************************** - * Protoypes from input_ext-dec.c + * Prototypes from input_ext-dec.c *****************************************************************************/ -#ifndef PLUGIN -u32 UnalignedShowBits( struct bit_stream_s *, unsigned int ); -void UnalignedRemoveBits( struct bit_stream_s * ); -u32 UnalignedGetBits( struct bit_stream_s *, unsigned int ); -#endif +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) ) @@ -239,7 +242,7 @@ 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); @@ -251,10 +254,10 @@ 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) ); } @@ -274,10 +277,10 @@ static __inline__ u32 ShowBits( bit_stream_t * p_bit_stream, * ShowSignedBits : return i_bits bits from the bit stream, using signed * arithmetic *****************************************************************************/ -static __inline__ s32 ShowSignedBits( bit_stream_t * p_bit_stream, +static inline int32_t ShowSignedBits( 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( (WORD_SIGNED)p_bit_stream->fifo.buffer >> (8 * sizeof(WORD_TYPE) - i_bits) ); @@ -292,8 +295,8 @@ static __inline__ s32 ShowSignedBits( bit_stream_t * p_bit_stream, * 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; @@ -307,7 +310,8 @@ 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; } @@ -319,8 +323,8 @@ 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) ) { @@ -328,11 +332,13 @@ 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; } @@ -347,10 +353,10 @@ 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; @@ -367,7 +373,8 @@ 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); @@ -384,12 +391,12 @@ static __inline__ u32 GetBits( bit_stream_t * p_bit_stream, * using signed arithmetic * XXX: do not use for 32 bits *****************************************************************************/ -static __inline__ s32 GetSignedBits( bit_stream_t * p_bit_stream, +static inline int32_t GetSignedBits( 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 ) { - s32 i_result; + int32_t i_result; p_bit_stream->fifo.i_available -= i_bits; i_result = (WORD_SIGNED)p_bit_stream->fifo.buffer @@ -406,10 +413,10 @@ static __inline__ s32 GetSignedBits( bit_stream_t * p_bit_stream, /***************************************************************************** * 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 ) { @@ -425,7 +432,8 @@ 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); @@ -433,7 +441,8 @@ 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 ); } @@ -447,7 +456,7 @@ 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; @@ -461,8 +470,8 @@ static __inline__ void RealignBits( bit_stream_t * p_bit_stream ) * 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; @@ -476,28 +485,33 @@ static __inline__ void GetChunk( bit_stream_t * p_bit_stream, 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; } } @@ -514,21 +528,8 @@ static __inline__ void GetChunk( bit_stream_t * p_bit_stream, */ /***************************************************************************** - * decoder_config_t - ***************************************************************************** - * Standard pointers given to the decoders as a toolbox. + * Prototypes from input_dec.c *****************************************************************************/ -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; +VLC_EXPORT( void, DecoderError, ( decoder_fifo_t * p_fifo ) ); +#endif /* "input_ext-dec.h" */