/H264Dec/source/h264bsd_vui.h

  1/*
  2 * Copyright (C) 2009 The Android Open Source Project
  3 *
  4 * Licensed under the Apache License, Version 2.0 (the "License");
  5 * you may not use this file except in compliance with the License.
  6 * You may obtain a copy of the License at
  7 *
  8 *      http://www.apache.org/licenses/LICENSE-2.0
  9 *
 10 * Unless required by applicable law or agreed to in writing, software
 11 * distributed under the License is distributed on an "AS IS" BASIS,
 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13 * See the License for the specific language governing permissions and
 14 * limitations under the License.
 15 */
 16
 17/*------------------------------------------------------------------------------
 18
 19    Table of contents
 20
 21    1. Include headers
 22    2. Module defines
 23    3. Data types
 24    4. Function prototypes
 25
 26------------------------------------------------------------------------------*/
 27
 28#ifndef H264SWDEC_VUI_H
 29#define H264SWDEC_VUI_H
 30
 31/*------------------------------------------------------------------------------
 32    1. Include headers
 33------------------------------------------------------------------------------*/
 34
 35#include "basetype.h"
 36#include "h264bsd_stream.h"
 37
 38/*------------------------------------------------------------------------------
 39    2. Module defines
 40------------------------------------------------------------------------------*/
 41
 42#define MAX_CPB_CNT 32
 43
 44/*------------------------------------------------------------------------------
 45    3. Data types
 46------------------------------------------------------------------------------*/
 47
 48/* enumerated sample aspect ratios, ASPECT_RATIO_M_N means M:N */
 49enum
 50{
 51    ASPECT_RATIO_UNSPECIFIED = 0,
 52    ASPECT_RATIO_1_1,
 53    ASPECT_RATIO_12_11,
 54    ASPECT_RATIO_10_11,
 55    ASPECT_RATIO_16_11,
 56    ASPECT_RATIO_40_33,
 57    ASPECT_RATIO_24_11,
 58    ASPECT_RATIO_20_11,
 59    ASPECT_RATIO_32_11,
 60    ASPECT_RATIO_80_33,
 61    ASPECT_RATIO_18_11,
 62    ASPECT_RATIO_15_11,
 63    ASPECT_RATIO_64_33,
 64    ASPECT_RATIO_160_99,
 65    ASPECT_RATIO_EXTENDED_SAR = 255
 66};
 67
 68/* structure to store Hypothetical Reference Decoder (HRD) parameters */
 69typedef struct
 70{
 71    u32 cpbCnt;
 72    u32 bitRateScale;
 73    u32 cpbSizeScale;
 74    u32 bitRateValue[MAX_CPB_CNT];
 75    u32 cpbSizeValue[MAX_CPB_CNT];
 76    u32 cbrFlag[MAX_CPB_CNT];
 77    u32 initialCpbRemovalDelayLength;
 78    u32 cpbRemovalDelayLength;
 79    u32 dpbOutputDelayLength;
 80    u32 timeOffsetLength;
 81} hrdParameters_t;
 82
 83/* storage for VUI parameters */
 84typedef struct
 85{
 86    u32 aspectRatioPresentFlag;
 87    u32 aspectRatioIdc;
 88    u32 sarWidth;
 89    u32 sarHeight;
 90    u32 overscanInfoPresentFlag;
 91    u32 overscanAppropriateFlag;
 92    u32 videoSignalTypePresentFlag;
 93    u32 videoFormat;
 94    u32 videoFullRangeFlag;
 95    u32 colourDescriptionPresentFlag;
 96    u32 colourPrimaries;
 97    u32 transferCharacteristics;
 98    u32 matrixCoefficients;
 99    u32 chromaLocInfoPresentFlag;
100    u32 chromaSampleLocTypeTopField;
101    u32 chromaSampleLocTypeBottomField;
102    u32 timingInfoPresentFlag;
103    u32 numUnitsInTick;
104    u32 timeScale;
105    u32 fixedFrameRateFlag;
106    u32 nalHrdParametersPresentFlag;
107    hrdParameters_t nalHrdParameters;
108    u32 vclHrdParametersPresentFlag;
109    hrdParameters_t vclHrdParameters;
110    u32 lowDelayHrdFlag;
111    u32 picStructPresentFlag;
112    u32 bitstreamRestrictionFlag;
113    u32 motionVectorsOverPicBoundariesFlag;
114    u32 maxBytesPerPicDenom;
115    u32 maxBitsPerMbDenom;
116    u32 log2MaxMvLengthHorizontal;
117    u32 log2MaxMvLengthVertical;
118    u32 numReorderFrames;
119    u32 maxDecFrameBuffering;
120} vuiParameters_t;
121
122/*------------------------------------------------------------------------------
123    4. Function prototypes
124------------------------------------------------------------------------------*/
125
126u32 h264bsdDecodeVuiParameters(strmData_t *pStrmData,
127    vuiParameters_t *pVuiParameters);
128
129#endif /* #ifdef H264SWDEC_VUI_H */
130