content/media/encoder/fmp4_muxer/ISOTrackMetadata.h@b8a032363ba2 (annotated)
content/media/encoder/fmp4_muxer/ISOTrackMetadata.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this file, |
| michael@0 | 4 | * You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef ISOTrackMetadata_h_ |
| michael@0 | 7 | #define ISOTrackMetadata_h_ |
| michael@0 | 8 | |
| michael@0 | 9 | #include "TrackMetadataBase.h" |
| michael@0 | 10 | |
| michael@0 | 11 | namespace mozilla { |
| michael@0 | 12 | |
| michael@0 | 13 | class AACTrackMetadata : public AudioTrackMetadata { |
| michael@0 | 14 | public: |
| michael@0 | 15 | // AudioTrackMetadata members |
| michael@0 | 16 | uint32_t GetAudioFrameDuration() MOZ_OVERRIDE { return mFrameDuration; } |
| michael@0 | 17 | uint32_t GetAudioFrameSize() MOZ_OVERRIDE { return mFrameSize; } |
| michael@0 | 18 | uint32_t GetAudioSampleRate() MOZ_OVERRIDE { return mSampleRate; } |
| michael@0 | 19 | uint32_t GetAudioChannels() MOZ_OVERRIDE { return mChannels; } |
| michael@0 | 20 | |
| michael@0 | 21 | // TrackMetadataBase member |
| michael@0 | 22 | MetadataKind GetKind() const MOZ_OVERRIDE { return METADATA_AAC; } |
| michael@0 | 23 | |
| michael@0 | 24 | // AACTrackMetadata members |
| michael@0 | 25 | AACTrackMetadata() |
| michael@0 | 26 | : mSampleRate(0) |
| michael@0 | 27 | , mFrameDuration(0) |
| michael@0 | 28 | , mFrameSize(0) |
| michael@0 | 29 | , mChannels(0) { |
| michael@0 | 30 | MOZ_COUNT_CTOR(AACTrackMetadata); |
| michael@0 | 31 | } |
| michael@0 | 32 | ~AACTrackMetadata() { MOZ_COUNT_DTOR(AACTrackMetadata); } |
| michael@0 | 33 | |
| michael@0 | 34 | uint32_t mSampleRate; // From 14496-3 table 1.16, it could be 7350 ~ 96000. |
| michael@0 | 35 | uint32_t mFrameDuration; // Audio frame duration based on SampleRate. |
| michael@0 | 36 | uint32_t mFrameSize; // Audio frame size, 0 is variant size. |
| michael@0 | 37 | uint32_t mChannels; // Channel number, it should be 1 or 2. |
| michael@0 | 38 | }; |
| michael@0 | 39 | |
| michael@0 | 40 | // AVC clock rate is 90k Hz. |
| michael@0 | 41 | #define AVC_CLOCK_RATE 90000 |
| michael@0 | 42 | |
| michael@0 | 43 | class AVCTrackMetadata : public VideoTrackMetadata { |
| michael@0 | 44 | public: |
| michael@0 | 45 | // VideoTrackMetadata members |
| michael@0 | 46 | uint32_t GetVideoHeight() MOZ_OVERRIDE { return mHeight; } |
| michael@0 | 47 | uint32_t GetVideoWidth() MOZ_OVERRIDE {return mWidth; } |
| michael@0 | 48 | uint32_t GetVideoDisplayHeight() MOZ_OVERRIDE { return mDisplayHeight; } |
| michael@0 | 49 | uint32_t GetVideoDisplayWidth() MOZ_OVERRIDE { return mDisplayWidth; } |
| michael@0 | 50 | uint32_t GetVideoClockRate() MOZ_OVERRIDE { return AVC_CLOCK_RATE; } |
| michael@0 | 51 | uint32_t GetVideoFrameRate() MOZ_OVERRIDE { return mFrameRate; } |
| michael@0 | 52 | |
| michael@0 | 53 | // TrackMetadataBase member |
| michael@0 | 54 | MetadataKind GetKind() const MOZ_OVERRIDE { return METADATA_AVC; } |
| michael@0 | 55 | |
| michael@0 | 56 | // AVCTrackMetadata |
| michael@0 | 57 | AVCTrackMetadata() |
| michael@0 | 58 | : mHeight(0) |
| michael@0 | 59 | , mWidth(0) |
| michael@0 | 60 | , mDisplayHeight(0) |
| michael@0 | 61 | , mDisplayWidth(0) |
| michael@0 | 62 | , mFrameRate(0) { |
| michael@0 | 63 | MOZ_COUNT_CTOR(AVCTrackMetadata); |
| michael@0 | 64 | } |
| michael@0 | 65 | ~AVCTrackMetadata() { MOZ_COUNT_DTOR(AVCTrackMetadata); } |
| michael@0 | 66 | |
| michael@0 | 67 | uint32_t mHeight; |
| michael@0 | 68 | uint32_t mWidth; |
| michael@0 | 69 | uint32_t mDisplayHeight; |
| michael@0 | 70 | uint32_t mDisplayWidth; |
| michael@0 | 71 | uint32_t mFrameRate; // frames per second |
| michael@0 | 72 | }; |
| michael@0 | 73 | |
| michael@0 | 74 | |
| michael@0 | 75 | // AMR sample rate is 8000 samples/s. |
| michael@0 | 76 | #define AMR_SAMPLE_RATE 8000 |
| michael@0 | 77 | |
| michael@0 | 78 | // Channel number is always 1. |
| michael@0 | 79 | #define AMR_CHANNELS 1 |
| michael@0 | 80 | |
| michael@0 | 81 | // AMR speech codec, 3GPP TS 26.071. Encoder and continer support AMR-NB only |
| michael@0 | 82 | // currently. |
| michael@0 | 83 | class AMRTrackMetadata : public AudioTrackMetadata { |
| michael@0 | 84 | public: |
| michael@0 | 85 | // AudioTrackMetadata members |
| michael@0 | 86 | // |
| michael@0 | 87 | // The number of sample sets generates by encoder is variant. So the |
| michael@0 | 88 | // frame duration and frame size are both 0. |
| michael@0 | 89 | uint32_t GetAudioFrameDuration() MOZ_OVERRIDE { return 0; } |
| michael@0 | 90 | uint32_t GetAudioFrameSize() MOZ_OVERRIDE { return 0; } |
| michael@0 | 91 | uint32_t GetAudioSampleRate() MOZ_OVERRIDE { return AMR_SAMPLE_RATE; } |
| michael@0 | 92 | uint32_t GetAudioChannels() MOZ_OVERRIDE { return AMR_CHANNELS; } |
| michael@0 | 93 | |
| michael@0 | 94 | // TrackMetadataBase member |
| michael@0 | 95 | MetadataKind GetKind() const MOZ_OVERRIDE { return METADATA_AMR; } |
| michael@0 | 96 | |
| michael@0 | 97 | // AMRTrackMetadata members |
| michael@0 | 98 | AMRTrackMetadata() { MOZ_COUNT_CTOR(AMRTrackMetadata); } |
| michael@0 | 99 | ~AMRTrackMetadata() { MOZ_COUNT_DTOR(AMRTrackMetadata); } |
| michael@0 | 100 | }; |
| michael@0 | 101 | |
| michael@0 | 102 | } |
| michael@0 | 103 | |
| michael@0 | 104 | #endif // ISOTrackMetadata_h_ |
