From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- dom/media/encoder/TrackMetadataBase.h | 76 +++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 dom/media/encoder/TrackMetadataBase.h (limited to 'dom/media/encoder/TrackMetadataBase.h') diff --git a/dom/media/encoder/TrackMetadataBase.h b/dom/media/encoder/TrackMetadataBase.h new file mode 100644 index 0000000000..503b52e5ec --- /dev/null +++ b/dom/media/encoder/TrackMetadataBase.h @@ -0,0 +1,76 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef TrackMetadataBase_h_ +#define TrackMetadataBase_h_ + +#include "nsTArray.h" +#include "nsCOMPtr.h" +namespace mozilla { + +// A class represent meta data for various codec format. Only support one track +// information. +class TrackMetadataBase { + public: + NS_INLINE_DECL_THREADSAFE_REFCOUNTING(TrackMetadataBase) + enum MetadataKind { + METADATA_OPUS, // Represent the Opus metadata + METADATA_VP8, + METADATA_VORBIS, + METADATA_AVC, + METADATA_AAC, + METADATA_AMR, + METADATA_EVRC, + METADATA_UNKNOWN // Metadata Kind not set + }; + // Return the specific metadata kind + virtual MetadataKind GetKind() const = 0; + + protected: + // Protected destructor, to discourage deletion outside of Release(): + virtual ~TrackMetadataBase() = default; +}; + +// The base class for audio metadata. +class AudioTrackMetadata : public TrackMetadataBase { + public: + // The duration of each sample set generated by encoder. (counted by samples) + // If the duration is variant, this value should return 0. + virtual uint32_t GetAudioFrameDuration() = 0; + + // The size of each sample set generated by encoder. (counted by byte) + // If the size is variant, this value should return 0. + virtual uint32_t GetAudioFrameSize() = 0; + + // AudioSampleRate is the number of audio sample per second. + virtual uint32_t GetAudioSampleRate() = 0; + + virtual uint32_t GetAudioChannels() = 0; +}; + +// The base class for video metadata. +class VideoTrackMetadata : public TrackMetadataBase { + public: + // VideoHeight and VideoWidth are the frame size of the elementary stream. + virtual uint32_t GetVideoHeight() = 0; + virtual uint32_t GetVideoWidth() = 0; + + // VideoDisplayHeight and VideoDisplayWidth are the display frame size. + virtual uint32_t GetVideoDisplayHeight() = 0; + virtual uint32_t GetVideoDisplayWidth() = 0; + + // VideoClockRate is the number of samples per second in video frame's + // timestamp. + // For example, if VideoClockRate is 90k Hz and VideoFrameRate is + // 30 fps, each frame's sample duration will be 3000 Hz. + virtual uint32_t GetVideoClockRate() = 0; + + // VideoFrameRate is numner of frames per second. + virtual uint32_t GetVideoFrameRate() = 0; +}; + +} // namespace mozilla + +#endif -- cgit v1.2.3