src/gallium/state_trackers/vdpau/mpeg2_bitstream_parser.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2010 Thomas Balling Sørensen.
   4  * All Rights Reserved.
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   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
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  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
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  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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  27
  28 #ifndef MPEG2_BITSTREAM_PARSER_H
  29 #define MPEG2_BITSTREAM_PARSER_H
  30
  31 #include <vdpau/vdpau.h>
  32 #include <pipe/p_video_state.h>
  33 #include "vdpau_private.h"
  34
  35 enum vdpMPEG2States
  36 {
  37         MPEG2_SEEK_HEADER,
  38         MPEG2_HEADER_DONE,
  39         MPEG2_BITSTREAM_DONE,
  40         MPEG2_HEADER_START_CODE
  41 };
  42
  43
  44 struct vdpMPEG2BitstreamParser
  45 {
  46         enum vdpMPEG2States state;
  47         uint32_t cur_bitstream;
  48         const uint8_t *ptr_bitstream_end;
  49         const uint8_t *ptr_bitstream;
  50         uint8_t code;
  51
  52         /* The decoded bitstream goes here: */
  53         /* Sequence_header_info */
  54         uint32_t horizontal_size_value;
  55 };
  56
  57 int
  58 vlVdpMPEG2BitstreamToMacroblock(struct pipe_screen *screen,
  59                   VdpBitstreamBuffer const *bitstream_buffers,
  60                                   uint32_t bitstream_buffer_count,
  61                   unsigned int *num_macroblocks,
  62                   struct pipe_mpeg12_macroblock **pipe_macroblocks);
  63
  64
  65 #endif // MPEG2_BITSTREAM_PARSER_H