src/media/vnext/fidl/fuchsia.mediastreams/compression.fidl

// Copyright 2021 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

library fuchsia.mediastreams;

/// An identifier for compression types.
alias CompressionType = string:256;

/// Describes the compression applied to a stream.
struct Compression {
    /// The type of compression applied to the stream.
    CompressionType type;

    /// Opaque ‘out-of-band’ parameters describing the compression
    /// of the stream.
    bytes? parameters;
};

// TODO: Use mimetypes for these?
const string AUDIO_COMPRESSION_AAC = "fuchsia.streams.aac";
const string AUDIO_COMPRESSION_AACLATM = "fuchsia.streams.aaclatm";
const string AUDIO_COMPRESSION_AMRNB = "fuchsia.streams.amrnb";
const string AUDIO_COMPRESSION_AMRWB = "fuchsia.streams.amrwb";
const string AUDIO_COMPRESSION_APTX = "fuchsia.streams.aptx";
const string AUDIO_COMPRESSION_FLAC = "fuchsia.streams.flac";
const string AUDIO_COMPRESSION_GSMMS = "fuchsia.streams.gsmms";
const string AUDIO_COMPRESSION_MP3 = "fuchsia.streams.mp3";
const string AUDIO_COMPRESSION_PCMALAW = "fuchsia.streams.pcmalaw";
const string AUDIO_COMPRESSION_PCMMULAW = "fuchsia.streams.pcmmulaw";
const string AUDIO_COMPRESSION_SBC = "fuchsia.streams.sbc";
const string AUDIO_COMPRESSION_VORBIS = "fuchsia.streams.vorbis";

const string VIDEO_COMPRESSION_H263 = "fuchsia.streams.h263";
const string VIDEO_COMPRESSION_H264 = "fuchsia.streams.h264";
const string VIDEO_COMPRESSION_MPEG4 = "fuchsia.streams.mpeg4";
const string VIDEO_COMPRESSION_THEORA = "fuchsia.streams.theora";
const string VIDEO_COMPRESSION_VP3 = "fuchsia.streams.vp3";
const string VIDEO_COMPRESSION_VP8 = "fuchsia.streams.vp8";
const string VIDEO_COMPRESSION_VP9 = "fuchsia.streams.vp9";