1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/media/encoder/fmp4_muxer/ISOTrackMetadata.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,104 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.7 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef ISOTrackMetadata_h_
1.10 +#define ISOTrackMetadata_h_
1.11 +
1.12 +#include "TrackMetadataBase.h"
1.13 +
1.14 +namespace mozilla {
1.15 +
1.16 +class AACTrackMetadata : public AudioTrackMetadata {
1.17 +public:
1.18 + // AudioTrackMetadata members
1.19 + uint32_t GetAudioFrameDuration() MOZ_OVERRIDE { return mFrameDuration; }
1.20 + uint32_t GetAudioFrameSize() MOZ_OVERRIDE { return mFrameSize; }
1.21 + uint32_t GetAudioSampleRate() MOZ_OVERRIDE { return mSampleRate; }
1.22 + uint32_t GetAudioChannels() MOZ_OVERRIDE { return mChannels; }
1.23 +
1.24 + // TrackMetadataBase member
1.25 + MetadataKind GetKind() const MOZ_OVERRIDE { return METADATA_AAC; }
1.26 +
1.27 + // AACTrackMetadata members
1.28 + AACTrackMetadata()
1.29 + : mSampleRate(0)
1.30 + , mFrameDuration(0)
1.31 + , mFrameSize(0)
1.32 + , mChannels(0) {
1.33 + MOZ_COUNT_CTOR(AACTrackMetadata);
1.34 + }
1.35 + ~AACTrackMetadata() { MOZ_COUNT_DTOR(AACTrackMetadata); }
1.36 +
1.37 + uint32_t mSampleRate; // From 14496-3 table 1.16, it could be 7350 ~ 96000.
1.38 + uint32_t mFrameDuration; // Audio frame duration based on SampleRate.
1.39 + uint32_t mFrameSize; // Audio frame size, 0 is variant size.
1.40 + uint32_t mChannels; // Channel number, it should be 1 or 2.
1.41 +};
1.42 +
1.43 +// AVC clock rate is 90k Hz.
1.44 +#define AVC_CLOCK_RATE 90000
1.45 +
1.46 +class AVCTrackMetadata : public VideoTrackMetadata {
1.47 +public:
1.48 + // VideoTrackMetadata members
1.49 + uint32_t GetVideoHeight() MOZ_OVERRIDE { return mHeight; }
1.50 + uint32_t GetVideoWidth() MOZ_OVERRIDE {return mWidth; }
1.51 + uint32_t GetVideoDisplayHeight() MOZ_OVERRIDE { return mDisplayHeight; }
1.52 + uint32_t GetVideoDisplayWidth() MOZ_OVERRIDE { return mDisplayWidth; }
1.53 + uint32_t GetVideoClockRate() MOZ_OVERRIDE { return AVC_CLOCK_RATE; }
1.54 + uint32_t GetVideoFrameRate() MOZ_OVERRIDE { return mFrameRate; }
1.55 +
1.56 + // TrackMetadataBase member
1.57 + MetadataKind GetKind() const MOZ_OVERRIDE { return METADATA_AVC; }
1.58 +
1.59 + // AVCTrackMetadata
1.60 + AVCTrackMetadata()
1.61 + : mHeight(0)
1.62 + , mWidth(0)
1.63 + , mDisplayHeight(0)
1.64 + , mDisplayWidth(0)
1.65 + , mFrameRate(0) {
1.66 + MOZ_COUNT_CTOR(AVCTrackMetadata);
1.67 + }
1.68 + ~AVCTrackMetadata() { MOZ_COUNT_DTOR(AVCTrackMetadata); }
1.69 +
1.70 + uint32_t mHeight;
1.71 + uint32_t mWidth;
1.72 + uint32_t mDisplayHeight;
1.73 + uint32_t mDisplayWidth;
1.74 + uint32_t mFrameRate; // frames per second
1.75 +};
1.76 +
1.77 +
1.78 +// AMR sample rate is 8000 samples/s.
1.79 +#define AMR_SAMPLE_RATE 8000
1.80 +
1.81 +// Channel number is always 1.
1.82 +#define AMR_CHANNELS 1
1.83 +
1.84 +// AMR speech codec, 3GPP TS 26.071. Encoder and continer support AMR-NB only
1.85 +// currently.
1.86 +class AMRTrackMetadata : public AudioTrackMetadata {
1.87 +public:
1.88 + // AudioTrackMetadata members
1.89 + //
1.90 + // The number of sample sets generates by encoder is variant. So the
1.91 + // frame duration and frame size are both 0.
1.92 + uint32_t GetAudioFrameDuration() MOZ_OVERRIDE { return 0; }
1.93 + uint32_t GetAudioFrameSize() MOZ_OVERRIDE { return 0; }
1.94 + uint32_t GetAudioSampleRate() MOZ_OVERRIDE { return AMR_SAMPLE_RATE; }
1.95 + uint32_t GetAudioChannels() MOZ_OVERRIDE { return AMR_CHANNELS; }
1.96 +
1.97 + // TrackMetadataBase member
1.98 + MetadataKind GetKind() const MOZ_OVERRIDE { return METADATA_AMR; }
1.99 +
1.100 + // AMRTrackMetadata members
1.101 + AMRTrackMetadata() { MOZ_COUNT_CTOR(AMRTrackMetadata); }
1.102 + ~AMRTrackMetadata() { MOZ_COUNT_DTOR(AMRTrackMetadata); }
1.103 +};
1.104 +
1.105 +}
1.106 +
1.107 +#endif // ISOTrackMetadata_h_
