avc_utils.h revision 386d609dc513e838c7e7c4c46c604493ccd560be
1cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber/* 2cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * Copyright (C) 2010 The Android Open Source Project 3cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * 4cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * you may not use this file except in compliance with the License. 6cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * You may obtain a copy of the License at 7cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * 8cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * 10cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * Unless required by applicable law or agreed to in writing, software 11cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * See the License for the specific language governing permissions and 14cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * limitations under the License. 15cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber */ 16cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 1785f12e9b9062402d6110df3f7099707912040edbAndreas Huber#ifndef AVC_UTILS_H_ 18cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 1985f12e9b9062402d6110df3f7099707912040edbAndreas Huber#define AVC_UTILS_H_ 20cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 2185f12e9b9062402d6110df3f7099707912040edbAndreas Huber#include <media/stagefright/foundation/ABuffer.h> 2295d7e994c73c17b27c7134ba3cc3acbb5889aa87Mathias Agopian#include <utils/Errors.h> 23cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 24cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubernamespace android { 25cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 266a63a939601645404fd98f58c19cc38ca818d99eAndreas Huberstruct ABitReader; 276a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber 28bfd41f33c77c66ead48ee378e4ea4b7bfa5fca1fAndreas Huberenum { 29bfd41f33c77c66ead48ee378e4ea4b7bfa5fca1fAndreas Huber kAVCProfileBaseline = 0x42, 30bfd41f33c77c66ead48ee378e4ea4b7bfa5fca1fAndreas Huber kAVCProfileMain = 0x4d, 31bfd41f33c77c66ead48ee378e4ea4b7bfa5fca1fAndreas Huber kAVCProfileExtended = 0x58, 32bfd41f33c77c66ead48ee378e4ea4b7bfa5fca1fAndreas Huber kAVCProfileHigh = 0x64, 33bfd41f33c77c66ead48ee378e4ea4b7bfa5fca1fAndreas Huber kAVCProfileHigh10 = 0x6e, 34bfd41f33c77c66ead48ee378e4ea4b7bfa5fca1fAndreas Huber kAVCProfileHigh422 = 0x7a, 35bfd41f33c77c66ead48ee378e4ea4b7bfa5fca1fAndreas Huber kAVCProfileHigh444 = 0xf4, 36bfd41f33c77c66ead48ee378e4ea4b7bfa5fca1fAndreas Huber kAVCProfileCAVLC444Intra = 0x2c 37bfd41f33c77c66ead48ee378e4ea4b7bfa5fca1fAndreas Huber}; 38bfd41f33c77c66ead48ee378e4ea4b7bfa5fca1fAndreas Huber 3985f12e9b9062402d6110df3f7099707912040edbAndreas Hubervoid FindAVCDimensions( 4085f12e9b9062402d6110df3f7099707912040edbAndreas Huber const sp<ABuffer> &seqParamSet, int32_t *width, int32_t *height); 41cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 426a63a939601645404fd98f58c19cc38ca818d99eAndreas Huberunsigned parseUE(ABitReader *br); 436a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber 44c68a48c474f609df3eeb7d9738675d6ac8835e0aAndreas Huberstatus_t getNextNALUnit( 45c68a48c474f609df3eeb7d9738675d6ac8835e0aAndreas Huber const uint8_t **_data, size_t *_size, 46c68a48c474f609df3eeb7d9738675d6ac8835e0aAndreas Huber const uint8_t **nalStart, size_t *nalSize, 47c68a48c474f609df3eeb7d9738675d6ac8835e0aAndreas Huber bool startCodeFollows = false); 48c68a48c474f609df3eeb7d9738675d6ac8835e0aAndreas Huber 49c68a48c474f609df3eeb7d9738675d6ac8835e0aAndreas Huberstruct MetaData; 50c68a48c474f609df3eeb7d9738675d6ac8835e0aAndreas Hubersp<MetaData> MakeAVCCodecSpecificData(const sp<ABuffer> &accessUnit); 51c68a48c474f609df3eeb7d9738675d6ac8835e0aAndreas Huber 52c68a48c474f609df3eeb7d9738675d6ac8835e0aAndreas Huberbool IsIDR(const sp<ABuffer> &accessUnit); 53c68a48c474f609df3eeb7d9738675d6ac8835e0aAndreas Huber 54bfd41f33c77c66ead48ee378e4ea4b7bfa5fca1fAndreas Huberconst char *AVCProfileToString(uint8_t profile); 55bfd41f33c77c66ead48ee378e4ea4b7bfa5fca1fAndreas Huber 5650c44c79d2d7dd6cd1485d9d939f67f80b8da1caGloria Wangsp<MetaData> MakeAACCodecSpecificData( 5750c44c79d2d7dd6cd1485d9d939f67f80b8da1caGloria Wang unsigned profile, unsigned sampling_freq_index, 5850c44c79d2d7dd6cd1485d9d939f67f80b8da1caGloria Wang unsigned channel_configuration); 5950c44c79d2d7dd6cd1485d9d939f67f80b8da1caGloria Wang 60386d609dc513e838c7e7c4c46c604493ccd560beAndreas Huber// Given an MPEG4 video VOL-header chunk (starting with 0x00 0x00 0x01 0x2?) 61386d609dc513e838c7e7c4c46c604493ccd560beAndreas Huber// parse it and fill in dimensions, returns true iff successful. 62386d609dc513e838c7e7c4c46c604493ccd560beAndreas Huberbool ExtractDimensionsFromVOLHeader( 63386d609dc513e838c7e7c4c46c604493ccd560beAndreas Huber const uint8_t *data, size_t size, int32_t *width, int32_t *height); 64386d609dc513e838c7e7c4c46c604493ccd560beAndreas Huber 65386d609dc513e838c7e7c4c46c604493ccd560beAndreas Huberbool GetMPEGAudioFrameSize( 66386d609dc513e838c7e7c4c46c604493ccd560beAndreas Huber uint32_t header, size_t *frame_size, 67386d609dc513e838c7e7c4c46c604493ccd560beAndreas Huber int *out_sampling_rate = NULL, int *out_channels = NULL, 68386d609dc513e838c7e7c4c46c604493ccd560beAndreas Huber int *out_bitrate = NULL, int *out_num_samples = NULL); 69386d609dc513e838c7e7c4c46c604493ccd560beAndreas Huber 70cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} // namespace android 71cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 7285f12e9b9062402d6110df3f7099707912040edbAndreas Huber#endif // AVC_UTILS_H_ 73