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Diffstat (limited to 'src/video_dec/libmpeg2/mpeg2.h')
-rw-r--r-- | src/video_dec/libmpeg2/mpeg2.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/video_dec/libmpeg2/mpeg2.h b/src/video_dec/libmpeg2/mpeg2.h new file mode 100644 index 000000000..ae69688f5 --- /dev/null +++ b/src/video_dec/libmpeg2/mpeg2.h @@ -0,0 +1,100 @@ +/* + * 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 */ + +#ifndef MPEG2_H +#define MPEG2_H + +#include "libmpeg2_accel.h" + +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; + void *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; + void *chunk_base; + /* pointer to current position in chunk_buffer */ + uint8_t * chunk_ptr; + /* last start code ? */ + uint8_t code; + uint32_t chunk_size; + + int64_t pts; + uint32_t rff_pattern; + int force_aspect; + int force_pan_scan; + + /* AFD data can be found after a sequence, group or picture start code */ + /* and will be stored in afd_value_seen. Later it will be transfered to */ + /* a stream property and stored into afd_value_reported to detect changes */ + int afd_value_seen; + int afd_value_reported; + + xine_stream_t *stream; + + /* a spu decoder for possible closed captions */ + spu_decoder_t *cc_dec; + mpeg2dec_accel_t accel; + +} 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); */ + +#endif |