2000-12-21 20:24:27 +01:00
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/*****************************************************************************
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* input_ext-dec.h: structures exported to the VideoLAN decoders
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*****************************************************************************
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* Copyright (C) 1999, 2000 VideoLAN
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2001-04-16 14:34:28 +02:00
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* $Id: input_ext-dec.h,v 1.28 2001/04/16 12:34:28 asmax Exp $
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2000-12-21 20:24:27 +01:00
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*
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2001-02-08 14:52:35 +01:00
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* Authors: Christophe Massiot <massiot@via.ecp.fr>
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* Michel Kaempf <maxx@via.ecp.fr>
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2000-12-21 20:24:27 +01:00
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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*****************************************************************************/
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2000-12-05 20:36:58 +01:00
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/* Structures exported to the decoders */
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/*****************************************************************************
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* data_packet_t
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*****************************************************************************
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* Describe a data packet.
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*****************************************************************************/
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typedef struct data_packet_s
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{
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/* Nothing before this line, the code relies on that */
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byte_t * p_buffer; /* raw data packet */
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2001-04-16 14:34:28 +02:00
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long l_size; /* buffer size */
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2000-12-05 20:36:58 +01:00
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/* Decoders information */
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byte_t * p_payload_start;
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/* start of the PES payload in this packet */
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byte_t * p_payload_end; /* guess ? :-) */
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boolean_t b_discard_payload; /* is the packet messed up ? */
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2001-03-02 04:32:46 +01:00
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int * pi_refcount;
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2000-12-05 20:36:58 +01:00
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/* Used to chain the TS packets that carry data for a same PES or PSI */
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struct data_packet_s * p_next;
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} data_packet_t;
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/*****************************************************************************
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* pes_packet_t
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*****************************************************************************
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* Describes an PES packet, with its properties, and pointers to the TS packets
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* containing it.
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*****************************************************************************/
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typedef struct pes_packet_s
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{
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/* PES properties */
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boolean_t b_data_alignment; /* used to find the beginning of
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* a video or audio unit */
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boolean_t b_discontinuity; /* This packet doesn't follow the
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* previous one */
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2001-01-24 20:05:55 +01:00
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mtime_t i_pts; /* PTS for this packet (zero if unset) */
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mtime_t i_dts; /* DTS for this packet (zero if unset) */
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int i_rate; /* current pace of reading
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* (see stream_control.h) */
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2000-12-05 20:36:58 +01:00
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int i_pes_size; /* size of the current PES packet */
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/* Pointers to packets (packets are then linked by the p_prev and
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p_next fields of the data_packet_t struct) */
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2001-01-13 13:57:21 +01:00
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data_packet_t * p_first; /* The first packet contained by this
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2000-12-05 20:36:58 +01:00
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* PES (used by decoders). */
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} pes_packet_t;
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/*****************************************************************************
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* decoder_fifo_t
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*****************************************************************************
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* This rotative FIFO contains PES packets that are to be decoded.
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*****************************************************************************/
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typedef struct decoder_fifo_s
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{
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/* Thread structures */
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vlc_mutex_t data_lock; /* fifo data lock */
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vlc_cond_t data_wait; /* fifo data conditional variable */
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/* Data */
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pes_packet_t * buffer[FIFO_SIZE + 1];
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int i_start;
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int i_end;
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/* Communication interface between input and decoders */
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boolean_t b_die; /* the decoder should return now */
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2000-12-21 14:25:51 +01:00
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boolean_t b_error; /* the decoder is in an error loop */
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2000-12-05 20:36:58 +01:00
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void * p_packets_mgt; /* packets management services
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* data (netlist...) */
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void (* pf_delete_pes)( void *, pes_packet_t * );
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/* function to use when releasing a PES */
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} decoder_fifo_t;
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/* Macros to manage a decoder_fifo_t structure. Please remember to take
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* data_lock before using them. */
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#define DECODER_FIFO_ISEMPTY( fifo ) ( (fifo).i_start == (fifo).i_end )
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#define DECODER_FIFO_ISFULL( fifo ) ( ( ((fifo).i_end + 1 - (fifo).i_start)\
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& FIFO_SIZE ) == 0 )
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#define DECODER_FIFO_START( fifo ) ( (fifo).buffer[ (fifo).i_start ] )
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#define DECODER_FIFO_INCSTART( fifo ) ( (fifo).i_start = ((fifo).i_start + 1)\
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& FIFO_SIZE )
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#define DECODER_FIFO_END( fifo ) ( (fifo).buffer[ (fifo).i_end ] )
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#define DECODER_FIFO_INCEND( fifo ) ( (fifo).i_end = ((fifo).i_end + 1) \
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& FIFO_SIZE )
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/*****************************************************************************
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* bit_fifo_t : bit fifo descriptor
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*****************************************************************************
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* This type describes a bit fifo used to store bits while working with the
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* input stream at the bit level.
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*****************************************************************************/
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2001-01-18 18:40:06 +01:00
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typedef u32 WORD_TYPE;
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2000-12-05 20:36:58 +01:00
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typedef struct bit_fifo_s
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{
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/* This unsigned integer allows us to work at the bit level. This buffer
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* can contain 32 bits, and the used space can be found on the MSb's side
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* and the available space on the LSb's side. */
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WORD_TYPE buffer;
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/* Number of bits available in the bit buffer */
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int i_available;
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} bit_fifo_t;
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/*****************************************************************************
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* bit_stream_t : bit stream descriptor
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*****************************************************************************
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* This type, based on a PES stream, includes all the structures needed to
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* handle the input stream like a bit stream.
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*****************************************************************************/
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typedef struct bit_stream_s
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{
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2001-01-21 02:36:26 +01:00
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/*
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* Bit structures
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*/
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bit_fifo_t fifo;
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2000-12-05 20:36:58 +01:00
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/*
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* Input structures
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*/
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/* The decoder fifo contains the data of the PES stream */
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decoder_fifo_t * p_decoder_fifo;
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/* Function to jump to the next data packet */
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void (* pf_next_data_packet)( struct bit_stream_s * );
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2001-01-10 17:24:11 +01:00
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/* Callback to the decoder used when changing data packets ; set
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* to NULL if your decoder doesn't need it. */
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2001-01-10 20:22:11 +01:00
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void (* pf_bitstream_callback)( struct bit_stream_s *,
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boolean_t b_new_pes );
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2001-01-10 17:24:11 +01:00
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/* Optional argument to the callback */
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void * p_callback_arg;
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2000-12-05 20:36:58 +01:00
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/*
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* Byte structures
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*/
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/* Current data packet (in the current PES packet of the PES stream) */
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data_packet_t * p_data;
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2001-03-06 20:33:58 +01:00
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/* Pointer to the next byte that is to be read (in the current packet) */
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2000-12-05 20:36:58 +01:00
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byte_t * p_byte;
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2001-03-06 20:33:58 +01:00
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/* Pointer to the last byte that is to be read (in the current packet */
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2000-12-05 20:36:58 +01:00
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byte_t * p_end;
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2001-03-06 20:33:58 +01:00
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/* Temporary buffer in case we're not aligned when changing data packets. */
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WORD_TYPE i_showbits_buffer;
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data_packet_t showbits_data;
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2000-12-05 20:36:58 +01:00
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} bit_stream_t;
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/*****************************************************************************
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* Inline functions used by the decoders to read bit_stream_t
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*****************************************************************************/
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/*
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2001-01-18 18:40:06 +01:00
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* DISCUSSION : How to use the bit_stream structures
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*
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* sizeof(WORD_TYPE) (usually 32) bits are read at the same time, thus
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* minimizing the number of p_byte changes.
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* Bits are read via GetBits() or ShowBits.
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*
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* XXX : Be aware that if, in the forthcoming functions, i_bits > 24,
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* the data have to be already aligned on an 8-bit boundary, or wrong
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* results will be returned. Use RealignBits() if unsure.
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2000-12-05 20:36:58 +01:00
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*/
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2001-01-18 18:40:06 +01:00
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#if (WORD_TYPE == u32)
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# define WORD_AT U32_AT
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#elif (WORD_TYPE == u64)
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# define WORD_AT U64_AT
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#else
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# error Unsupported WORD_TYPE
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#endif
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2000-12-05 20:36:58 +01:00
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/*****************************************************************************
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2001-01-18 18:40:06 +01:00
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* Protoypes from input_ext-dec.c
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2000-12-05 20:36:58 +01:00
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*****************************************************************************/
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2001-01-18 18:40:06 +01:00
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u32 UnalignedShowBits( struct bit_stream_s *, unsigned int );
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void UnalignedRemoveBits( struct bit_stream_s * );
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u32 UnalignedGetBits( struct bit_stream_s *, unsigned int );
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2000-12-05 20:36:58 +01:00
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/*****************************************************************************
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2001-01-18 18:40:06 +01:00
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* AlignWord : fill in the bit buffer so that the byte pointer be aligned
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* on a word boundary (XXX: there must be at least sizeof(WORD_TYPE) - 1
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* empty bytes in the bit buffer)
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2000-12-05 20:36:58 +01:00
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*****************************************************************************/
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2001-01-18 18:40:06 +01:00
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static __inline__ void AlignWord( bit_stream_t * p_bit_stream )
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2000-12-05 20:36:58 +01:00
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{
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2001-03-02 14:20:29 +01:00
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while( (ptrdiff_t)p_bit_stream->p_byte
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2001-01-18 18:40:06 +01:00
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& (sizeof(WORD_TYPE) - 1) )
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2000-12-05 20:36:58 +01:00
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{
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2001-01-18 18:40:06 +01:00
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if( p_bit_stream->p_byte < p_bit_stream->p_end )
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{
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p_bit_stream->fifo.buffer |= *(p_bit_stream->p_byte++)
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<< (8 * sizeof(WORD_TYPE) - 8
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- p_bit_stream->fifo.i_available);
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p_bit_stream->fifo.i_available += 8;
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}
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else
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{
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p_bit_stream->pf_next_data_packet( p_bit_stream );
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p_bit_stream->fifo.buffer |= *(p_bit_stream->p_byte++)
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<< (8 * sizeof(WORD_TYPE) - 8
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- p_bit_stream->fifo.i_available);
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p_bit_stream->fifo.i_available += 8;
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}
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2000-12-05 20:36:58 +01:00
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}
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}
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/*****************************************************************************
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* ShowBits : return i_bits bits from the bit stream
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*****************************************************************************/
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2001-01-18 18:40:06 +01:00
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static __inline__ u32 ShowBits( bit_stream_t * p_bit_stream,
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unsigned int i_bits )
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2000-12-05 20:36:58 +01:00
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{
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if( p_bit_stream->fifo.i_available >= i_bits )
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{
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return( p_bit_stream->fifo.buffer >> (8 * sizeof(WORD_TYPE) - i_bits) );
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}
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if( p_bit_stream->p_byte <= p_bit_stream->p_end - sizeof(WORD_TYPE) )
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{
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2001-01-18 18:40:06 +01:00
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return( (p_bit_stream->fifo.buffer |
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(WORD_AT( p_bit_stream->p_byte )
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>> p_bit_stream->fifo.i_available))
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>> (8 * sizeof(WORD_TYPE) - i_bits) );
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2000-12-05 20:36:58 +01:00
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}
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2001-01-18 18:40:06 +01:00
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return UnalignedShowBits( p_bit_stream, i_bits );
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2000-12-05 20:36:58 +01:00
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}
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/*****************************************************************************
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* RemoveBits : removes i_bits bits from the bit buffer
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2001-01-11 16:35:35 +01:00
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* XXX: do not use for 32 bits, see RemoveBits32
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2000-12-05 20:36:58 +01:00
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*****************************************************************************/
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2001-01-18 18:40:06 +01:00
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static __inline__ void RemoveBits( bit_stream_t * p_bit_stream,
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unsigned int i_bits )
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2000-12-05 20:36:58 +01:00
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{
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p_bit_stream->fifo.i_available -= i_bits;
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if( p_bit_stream->fifo.i_available >= 0 )
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{
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p_bit_stream->fifo.buffer <<= i_bits;
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return;
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}
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2001-01-18 18:40:06 +01:00
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if( p_bit_stream->p_byte <= p_bit_stream->p_end - sizeof(WORD_TYPE) )
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{
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p_bit_stream->fifo.buffer = WORD_AT( p_bit_stream->p_byte )
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<< ( -p_bit_stream->fifo.i_available );
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((WORD_TYPE *)p_bit_stream->p_byte)++;
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p_bit_stream->fifo.i_available += sizeof(WORD_TYPE) * 8;
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return;
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}
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UnalignedRemoveBits( p_bit_stream );
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2000-12-05 20:36:58 +01:00
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}
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/*****************************************************************************
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* RemoveBits32 : removes 32 bits from the bit buffer (and as a side effect,
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2001-01-11 16:35:35 +01:00
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* refill it)
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2000-12-05 20:36:58 +01:00
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*****************************************************************************/
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2001-01-18 18:40:06 +01:00
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#if (WORD_TYPE == u32)
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2000-12-05 20:36:58 +01:00
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static __inline__ void RemoveBits32( bit_stream_t * p_bit_stream )
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{
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2001-01-18 18:40:06 +01:00
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if( p_bit_stream->p_byte <= p_bit_stream->p_end - sizeof(WORD_TYPE) )
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2001-01-11 16:35:35 +01:00
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{
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2001-01-18 18:40:06 +01:00
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if( p_bit_stream->fifo.i_available )
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{
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p_bit_stream->fifo.buffer = WORD_AT( p_bit_stream->p_byte )
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2001-01-12 12:36:49 +01:00
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<< (32 - p_bit_stream->fifo.i_available);
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2001-01-18 18:40:06 +01:00
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((WORD_TYPE *)p_bit_stream->p_byte)++;
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return;
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}
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((WORD_TYPE *)p_bit_stream->p_byte)++;
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return;
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2001-01-12 12:36:49 +01:00
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}
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2001-01-18 18:40:06 +01:00
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p_bit_stream->fifo.i_available -= 32;
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UnalignedRemoveBits( p_bit_stream );
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2000-12-05 20:36:58 +01:00
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}
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2001-01-18 18:40:06 +01:00
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#else
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# define RemoveBits32( p_bit_stream ) RemoveBits( p_bit_stream, 32 )
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#endif
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2000-12-05 20:36:58 +01:00
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/*****************************************************************************
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* GetBits : returns i_bits bits from the bit stream and removes them
|
2001-01-11 16:35:35 +01:00
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* XXX: do not use for 32 bits, see GetBits32
|
2000-12-05 20:36:58 +01:00
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*****************************************************************************/
|
2001-01-18 18:40:06 +01:00
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static __inline__ u32 GetBits( bit_stream_t * p_bit_stream,
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unsigned int i_bits )
|
2000-12-05 20:36:58 +01:00
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{
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u32 i_result;
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|
2001-01-22 19:04:10 +01:00
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p_bit_stream->fifo.i_available -= i_bits;
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if( p_bit_stream->fifo.i_available >= 0 )
|
2000-12-05 20:36:58 +01:00
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{
|
2001-01-18 18:40:06 +01:00
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i_result = p_bit_stream->fifo.buffer
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>> (8 * sizeof(WORD_TYPE) - i_bits);
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2000-12-05 20:36:58 +01:00
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p_bit_stream->fifo.buffer <<= i_bits;
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return( i_result );
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}
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2001-01-18 18:40:06 +01:00
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if( p_bit_stream->p_byte <= p_bit_stream->p_end - sizeof(WORD_TYPE) )
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{
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i_result = p_bit_stream->fifo.buffer
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>> (8 * sizeof(WORD_TYPE) - i_bits);
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p_bit_stream->fifo.buffer = WORD_AT( p_bit_stream->p_byte );
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((WORD_TYPE *)p_bit_stream->p_byte)++;
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i_result |= p_bit_stream->fifo.buffer
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>> (8 * sizeof(WORD_TYPE)
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2000-12-05 20:36:58 +01:00
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+ p_bit_stream->fifo.i_available);
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2001-01-18 18:40:06 +01:00
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p_bit_stream->fifo.buffer <<= ( -p_bit_stream->fifo.i_available );
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p_bit_stream->fifo.i_available += sizeof(WORD_TYPE) * 8;
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return( i_result );
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}
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2000-12-05 20:36:58 +01:00
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|
2001-01-18 18:40:06 +01:00
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return UnalignedGetBits( p_bit_stream, i_bits );
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2000-12-05 20:36:58 +01:00
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}
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/*****************************************************************************
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* GetBits32 : returns 32 bits from the bit stream and removes them
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*****************************************************************************/
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2001-01-18 18:40:06 +01:00
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#if (WORD_TYPE == u32)
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static __inline__ u32 GetBits32( bit_stream_t * p_bit_stream )
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2000-12-05 20:36:58 +01:00
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|
{
|
2001-01-18 18:40:06 +01:00
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u32 i_result;
|
2000-12-05 20:36:58 +01:00
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2001-01-18 18:40:06 +01:00
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if( p_bit_stream->fifo.i_available == 32 )
|
2001-01-12 12:36:49 +01:00
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{
|
2001-01-18 18:40:06 +01:00
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p_bit_stream->fifo.i_available = 0;
|
2001-01-12 18:33:18 +01:00
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i_result = p_bit_stream->fifo.buffer;
|
2001-01-18 18:40:06 +01:00
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p_bit_stream->fifo.buffer = 0;
|
2001-01-12 18:33:18 +01:00
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return( i_result );
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}
|
2001-01-18 18:40:06 +01:00
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if( p_bit_stream->p_byte <= p_bit_stream->p_end - sizeof(WORD_TYPE) )
|
2001-01-12 18:33:18 +01:00
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|
{
|
2001-01-18 18:40:06 +01:00
|
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|
if( p_bit_stream->fifo.i_available )
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|
|
{
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i_result = p_bit_stream->fifo.buffer;
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p_bit_stream->fifo.buffer = WORD_AT( p_bit_stream->p_byte );
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((WORD_TYPE *)p_bit_stream->p_byte)++;
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i_result |= p_bit_stream->fifo.buffer
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>> (p_bit_stream->fifo.i_available);
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p_bit_stream->fifo.buffer <<= (32 - p_bit_stream->fifo.i_available);
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return( i_result );
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}
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i_result = WORD_AT( p_bit_stream->p_byte );
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((WORD_TYPE *)p_bit_stream->p_byte)++;
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return( i_result );
|
2001-01-12 12:36:49 +01:00
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|
|
}
|
2001-01-18 18:40:06 +01:00
|
|
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|
2001-01-22 19:04:10 +01:00
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p_bit_stream->fifo.i_available -= 32;
|
2001-01-18 18:40:06 +01:00
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return UnalignedGetBits( p_bit_stream, 32 );
|
2000-12-05 20:36:58 +01:00
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|
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}
|
2001-01-18 18:40:06 +01:00
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#else
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# define GetBits32( p_bit_stream ) GetBits( p_bit_stream, 32 )
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#endif
|
2000-12-05 20:36:58 +01:00
|
|
|
|
|
|
|
/*****************************************************************************
|
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|
|
* RealignBits : realigns the bit buffer on an 8-bit boundary
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|
*****************************************************************************/
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static __inline__ void RealignBits( bit_stream_t * p_bit_stream )
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{
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p_bit_stream->fifo.buffer <<= (p_bit_stream->fifo.i_available & 0x7);
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p_bit_stream->fifo.i_available &= ~0x7;
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}
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|
2000-12-19 20:55:35 +01:00
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|
/*****************************************************************************
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* GetChunk : reads a large chunk of data
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|
*****************************************************************************
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* The position in the stream must be byte-aligned, if unsure call
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|
* RealignBits(). p_buffer must to a buffer at least as big as i_buf_len
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* otherwise your code will crash.
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|
*****************************************************************************/
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static __inline__ void GetChunk( bit_stream_t * p_bit_stream,
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byte_t * p_buffer, size_t i_buf_len )
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{
|
2000-12-26 20:14:47 +01:00
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|
ptrdiff_t i_available;
|
2000-12-19 20:55:35 +01:00
|
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|
2001-01-18 18:40:06 +01:00
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|
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if( p_bit_stream->fifo.i_available )
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|
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|
{
|
2001-01-20 14:08:33 +01:00
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|
*((WORD_TYPE *)p_buffer) = WORD_AT( &p_bit_stream->fifo.buffer );
|
2001-01-18 18:40:06 +01:00
|
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|
p_buffer += p_bit_stream->fifo.i_available >> 3;
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|
|
i_buf_len -= p_bit_stream->fifo.i_available >> 3;
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|
|
|
p_bit_stream->fifo.buffer = 0;
|
|
|
|
p_bit_stream->fifo.i_available = 0;
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|
|
|
}
|
|
|
|
|
2000-12-19 20:55:35 +01:00
|
|
|
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 );
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|
|
|
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 );
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|
|
|
}
|
|
|
|
while( (i_available = p_bit_stream->p_end - p_bit_stream->p_byte)
|
2001-01-12 18:33:18 +01:00
|
|
|
<= i_buf_len && !p_bit_stream->p_decoder_fifo->b_die );
|
2000-12-19 20:55:35 +01:00
|
|
|
|
|
|
|
if( i_buf_len )
|
|
|
|
{
|
|
|
|
memcpy( p_buffer, p_bit_stream->p_byte, i_buf_len );
|
|
|
|
p_bit_stream->p_byte += i_buf_len;
|
|
|
|
}
|
|
|
|
}
|
2001-01-18 18:40:06 +01:00
|
|
|
|
|
|
|
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;
|
2000-12-19 20:55:35 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-12-05 20:36:58 +01:00
|
|
|
/*
|
|
|
|
* Communication interface between input and decoders
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
|
|
* decoder_config_t
|
|
|
|
*****************************************************************************
|
|
|
|
* Standard pointers given to the decoders as a toolbox.
|
|
|
|
*****************************************************************************/
|
|
|
|
typedef struct decoder_config_s
|
|
|
|
{
|
2000-12-22 18:53:30 +01:00
|
|
|
u16 i_id;
|
2000-12-05 20:36:58 +01:00
|
|
|
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.
|
|
|
|
*****************************************************************************/
|
|
|
|
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;
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 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 */
|
|
|
|
|
2000-12-21 20:24:27 +01:00
|
|
|
vlc_thread_t (* pf_create_thread)( void * );
|
2000-12-05 20:36:58 +01:00
|
|
|
} decoder_capabilities_t;
|
|
|
|
|
|
|
|
/* Decoder types */
|
|
|
|
#define NONE_D 0
|
|
|
|
#define VIDEO_D 1
|
|
|
|
#define AUDIO_D 2
|