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comparison: content/media/encoder/fmp4_muxer/ISOTrackMetadata.h
content/media/encoder/fmp4_muxer/ISOTrackMetadata.h
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 4 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef ISOTrackMetadata_h_ | |
| 7 #define ISOTrackMetadata_h_ | |
| 8 | |
| 9 #include "TrackMetadataBase.h" | |
| 10 | |
| 11 namespace mozilla { | |
| 12 | |
| 13 class AACTrackMetadata : public AudioTrackMetadata { | |
| 14 public: | |
| 15 // AudioTrackMetadata members | |
| 16 uint32_t GetAudioFrameDuration() MOZ_OVERRIDE { return mFrameDuration; } | |
| 17 uint32_t GetAudioFrameSize() MOZ_OVERRIDE { return mFrameSize; } | |
| 18 uint32_t GetAudioSampleRate() MOZ_OVERRIDE { return mSampleRate; } | |
| 19 uint32_t GetAudioChannels() MOZ_OVERRIDE { return mChannels; } | |
| 20 | |
| 21 // TrackMetadataBase member | |
| 22 MetadataKind GetKind() const MOZ_OVERRIDE { return METADATA_AAC; } | |
| 23 | |
| 24 // AACTrackMetadata members | |
| 25 AACTrackMetadata() | |
| 26 : mSampleRate(0) | |
| 27 , mFrameDuration(0) | |
| 28 , mFrameSize(0) | |
| 29 , mChannels(0) { | |
| 30 MOZ_COUNT_CTOR(AACTrackMetadata); | |
| 31 } | |
| 32 ~AACTrackMetadata() { MOZ_COUNT_DTOR(AACTrackMetadata); } | |
| 33 | |
| 34 uint32_t mSampleRate; // From 14496-3 table 1.16, it could be 7350 ~ 96000. | |
| 35 uint32_t mFrameDuration; // Audio frame duration based on SampleRate. | |
| 36 uint32_t mFrameSize; // Audio frame size, 0 is variant size. | |
| 37 uint32_t mChannels; // Channel number, it should be 1 or 2. | |
| 38 }; | |
| 39 | |
| 40 // AVC clock rate is 90k Hz. | |
| 41 #define AVC_CLOCK_RATE 90000 | |
| 42 | |
| 43 class AVCTrackMetadata : public VideoTrackMetadata { | |
| 44 public: | |
| 45 // VideoTrackMetadata members | |
| 46 uint32_t GetVideoHeight() MOZ_OVERRIDE { return mHeight; } | |
| 47 uint32_t GetVideoWidth() MOZ_OVERRIDE {return mWidth; } | |
| 48 uint32_t GetVideoDisplayHeight() MOZ_OVERRIDE { return mDisplayHeight; } | |
| 49 uint32_t GetVideoDisplayWidth() MOZ_OVERRIDE { return mDisplayWidth; } | |
| 50 uint32_t GetVideoClockRate() MOZ_OVERRIDE { return AVC_CLOCK_RATE; } | |
| 51 uint32_t GetVideoFrameRate() MOZ_OVERRIDE { return mFrameRate; } | |
| 52 | |
| 53 // TrackMetadataBase member | |
| 54 MetadataKind GetKind() const MOZ_OVERRIDE { return METADATA_AVC; } | |
| 55 | |
| 56 // AVCTrackMetadata | |
| 57 AVCTrackMetadata() | |
| 58 : mHeight(0) | |
| 59 , mWidth(0) | |
| 60 , mDisplayHeight(0) | |
| 61 , mDisplayWidth(0) | |
| 62 , mFrameRate(0) { | |
| 63 MOZ_COUNT_CTOR(AVCTrackMetadata); | |
| 64 } | |
| 65 ~AVCTrackMetadata() { MOZ_COUNT_DTOR(AVCTrackMetadata); } | |
| 66 | |
| 67 uint32_t mHeight; | |
| 68 uint32_t mWidth; | |
| 69 uint32_t mDisplayHeight; | |
| 70 uint32_t mDisplayWidth; | |
| 71 uint32_t mFrameRate; // frames per second | |
| 72 }; | |
| 73 | |
| 74 | |
| 75 // AMR sample rate is 8000 samples/s. | |
| 76 #define AMR_SAMPLE_RATE 8000 | |
| 77 | |
| 78 // Channel number is always 1. | |
| 79 #define AMR_CHANNELS 1 | |
| 80 | |
| 81 // AMR speech codec, 3GPP TS 26.071. Encoder and continer support AMR-NB only | |
| 82 // currently. | |
| 83 class AMRTrackMetadata : public AudioTrackMetadata { | |
| 84 public: | |
| 85 // AudioTrackMetadata members | |
| 86 // | |
| 87 // The number of sample sets generates by encoder is variant. So the | |
| 88 // frame duration and frame size are both 0. | |
| 89 uint32_t GetAudioFrameDuration() MOZ_OVERRIDE { return 0; } | |
| 90 uint32_t GetAudioFrameSize() MOZ_OVERRIDE { return 0; } | |
| 91 uint32_t GetAudioSampleRate() MOZ_OVERRIDE { return AMR_SAMPLE_RATE; } | |
| 92 uint32_t GetAudioChannels() MOZ_OVERRIDE { return AMR_CHANNELS; } | |
| 93 | |
| 94 // TrackMetadataBase member | |
| 95 MetadataKind GetKind() const MOZ_OVERRIDE { return METADATA_AMR; } | |
| 96 | |
| 97 // AMRTrackMetadata members | |
| 98 AMRTrackMetadata() { MOZ_COUNT_CTOR(AMRTrackMetadata); } | |
| 99 ~AMRTrackMetadata() { MOZ_COUNT_DTOR(AMRTrackMetadata); } | |
| 100 }; | |
| 101 | |
| 102 } | |
| 103 | |
| 104 #endif // ISOTrackMetadata_h_ |
