The Tor Browser / file comparison
comparison: content/media/ogg/OpusParser.h
content/media/ogg/OpusParser.h
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
equal
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| -1:000000000000 | 0:7a632e4ea557 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim:set ts=2 sw=2 sts=2 et cindent: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 #if !defined(OpusParser_h_) | |
| 7 #define OpusParser_h_ | |
| 8 | |
| 9 #include <stdint.h> | |
| 10 | |
| 11 #include <opus/opus.h> | |
| 12 #include "opus/opus_multistream.h" | |
| 13 | |
| 14 #include "nsTArray.h" | |
| 15 #include "nsString.h" | |
| 16 | |
| 17 namespace mozilla { | |
| 18 | |
| 19 class OpusParser | |
| 20 { | |
| 21 public: | |
| 22 OpusParser(); | |
| 23 | |
| 24 bool DecodeHeader(unsigned char* aData, size_t aLength); | |
| 25 bool DecodeTags(unsigned char* aData, size_t aLength); | |
| 26 | |
| 27 // Various fields from the Ogg Opus header. | |
| 28 int mRate; // Sample rate the decoder uses (always 48 kHz). | |
| 29 uint32_t mNominalRate; // Original sample rate of the data (informational). | |
| 30 int mChannels; // Number of channels the stream encodes. | |
| 31 uint16_t mPreSkip; // Number of samples to strip after decoder reset. | |
| 32 #ifdef MOZ_SAMPLE_TYPE_FLOAT32 | |
| 33 float mGain; // Gain to apply to decoder output. | |
| 34 #else | |
| 35 int32_t mGain_Q16; // Gain to apply to the decoder output. | |
| 36 #endif | |
| 37 int mChannelMapping; // Channel mapping family. | |
| 38 int mStreams; // Number of packed streams in each packet. | |
| 39 int mCoupledStreams; // Number of packed coupled streams in each packet. | |
| 40 unsigned char mMappingTable[255]; // Channel mapping table. | |
| 41 | |
| 42 // Granule position (end sample) of the last decoded Opus packet. This is | |
| 43 // used to calculate the amount we should trim from the last packet. | |
| 44 int64_t mPrevPacketGranulepos; | |
| 45 | |
| 46 nsTArray<nsCString> mTags; // Unparsed comment strings from the header. | |
| 47 | |
| 48 nsCString mVendorString; // Encoder vendor string from the header. | |
| 49 | |
| 50 }; | |
| 51 | |
| 52 } // namespace mozilla | |
| 53 | |
| 54 #endif |
