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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef AVC_UTILS_H_
#define AVC_UTILS_H_
#include <media/stagefright/foundation/ABuffer.h>
#include <utils/Errors.h>
namespace android {
struct ABitReader;
enum {
kAVCProfileBaseline = 0x42,
kAVCProfileMain = 0x4d,
kAVCProfileExtended = 0x58,
kAVCProfileHigh = 0x64,
kAVCProfileHigh10 = 0x6e,
kAVCProfileHigh422 = 0x7a,
kAVCProfileHigh444 = 0xf4,
kAVCProfileCAVLC444Intra = 0x2c
};
void FindAVCDimensions(
const sp<ABuffer> &seqParamSet, int32_t *width, int32_t *height);
unsigned parseUE(ABitReader *br);
status_t getNextNALUnit(
const uint8_t **_data, size_t *_size,
const uint8_t **nalStart, size_t *nalSize,
bool startCodeFollows = false);
struct MetaData;
sp<MetaData> MakeAVCCodecSpecificData(const sp<ABuffer> &accessUnit);
bool IsIDR(const sp<ABuffer> &accessUnit);
const char *AVCProfileToString(uint8_t profile);
sp<MetaData> MakeAACCodecSpecificData(
unsigned profile, unsigned sampling_freq_index,
unsigned channel_configuration);
// Given an MPEG4 video VOL-header chunk (starting with 0x00 0x00 0x01 0x2?)
// parse it and fill in dimensions, returns true iff successful.
bool ExtractDimensionsFromVOLHeader(
const uint8_t *data, size_t size, int32_t *width, int32_t *height);
bool GetMPEGAudioFrameSize(
uint32_t header, size_t *frame_size,
int *out_sampling_rate = NULL, int *out_channels = NULL,
int *out_bitrate = NULL, int *out_num_samples = NULL);
} // namespace android
#endif // AVC_UTILS_H_
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