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/*
* mpeg2.h
* Copyright (C) 1999-2001 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
*
* This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
*
* mpeg2dec is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* mpeg2dec is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* Structure for the mpeg2dec decoder */
typedef struct mpeg2dec_s {
xine_video_port_t * output;
uint32_t frame_format;
/* this is where we keep the state of the decoder */
struct picture_s * picture, *picture_base;
uint32_t shift;
int new_sequence;
int is_sequence_needed;
int is_wait_for_ip_frames;
int frames_to_drop, drop_frame;
int in_slice;
int seek_mode, is_frame_needed;
/* the maximum chunk size is determined by vbv_buffer_size */
/* which is 224K for MP@ML streams. */
/* (we make no pretenses of decoding anything more than that) */
/* allocated in init - gcc has problems allocating such big structures */
uint8_t * chunk_buffer, *chunk_base;
/* pointer to current position in chunk_buffer */
uint8_t * chunk_ptr;
/* last start code ? */
uint8_t code;
int64_t pts;
uint32_t rff_pattern;
int force_aspect;
int force_pan_scan;
xine_stream_t *stream;
/* a spu decoder for possible closed captions */
spu_decoder_t *cc_dec;
} mpeg2dec_t ;
/* initialize mpegdec with a opaque user pointer */
void mpeg2_init (mpeg2dec_t * mpeg2dec,
xine_video_port_t * output);
/* destroy everything which was allocated, shutdown the output */
void mpeg2_close (mpeg2dec_t * mpeg2dec);
int mpeg2_decode_data (mpeg2dec_t * mpeg2dec,
uint8_t * data_start, uint8_t * data_end,
uint64_t pts);
void mpeg2_find_sequence_header (mpeg2dec_t * mpeg2dec,
uint8_t * data_start, uint8_t * data_end);
void mpeg2_flush (mpeg2dec_t * mpeg2dec);
void mpeg2_reset (mpeg2dec_t * mpeg2dec);
void mpeg2_discontinuity (mpeg2dec_t * mpeg2dec);
/* Not needed, it is defined as static in decode.c, and no-one else called it
* currently
*/
/* void process_userdata(mpeg2dec_t *mpeg2dec, uint8_t *buffer); */
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