forked from mirrors/gecko-dev
3274be9ff2
Backed out changeset 1b6bef229ce4 (bug 1860492) Backed out changeset 22a3235fe2dc (bug 1860492) Backed out changeset a5b2e4d12e44 (bug 1860492) Backed out changeset cbcb811ca382 (bug 1860492) Backed out changeset d6a999866f19 (bug 1860492) Backed out changeset 40cee82fa090 (bug 1860492) Backed out changeset eeec1917ab49 (bug 1860492) Backed out changeset cf1230802d5c (bug 1860492) Backed out changeset b34aacf0e966 (bug 1860492) Backed out changeset 45d137c795f1 (bug 1860492) Backed out changeset fb667be5932d (bug 1860492) Backed out changeset a6d22d73c8a5 (bug 1860492) Backed out changeset c8b6c53698f5 (bug 1860492)
82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "OggDecoder.h"
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#include "MediaContainerType.h"
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#include "MediaDecoder.h"
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#include "mozilla/StaticPrefs_media.h"
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#include "nsMimeTypes.h"
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namespace mozilla {
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/* static */
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bool OggDecoder::IsSupportedType(const MediaContainerType& aContainerType) {
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if (!StaticPrefs::media_ogg_enabled()) {
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return false;
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}
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if (aContainerType.Type() != MEDIAMIMETYPE(AUDIO_OGG) &&
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aContainerType.Type() != MEDIAMIMETYPE(VIDEO_OGG) &&
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aContainerType.Type() != MEDIAMIMETYPE("application/ogg")) {
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return false;
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}
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const bool isOggVideo = (aContainerType.Type() != MEDIAMIMETYPE(AUDIO_OGG));
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const MediaCodecs& codecs = aContainerType.ExtendedType().Codecs();
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if (codecs.IsEmpty()) {
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// Ogg guarantees that the only codecs it contained are supported.
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return true;
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}
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// Verify that all the codecs specified are ones that we expect that
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// we can play.
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for (const auto& codec : codecs.Range()) {
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if ((MediaDecoder::IsOpusEnabled() && codec.EqualsLiteral("opus")) ||
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codec.EqualsLiteral("vorbis") || codec.EqualsLiteral("flac")) {
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continue;
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}
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// Note: Only accept Theora in a video container type, not in an audio
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// container type.
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if (isOggVideo && codec.EqualsLiteral("theora")) {
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continue;
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}
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// Some unsupported codec.
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return false;
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}
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return true;
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}
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/* static */
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nsTArray<UniquePtr<TrackInfo>> OggDecoder::GetTracksInfo(
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const MediaContainerType& aType) {
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nsTArray<UniquePtr<TrackInfo>> tracks;
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if (!IsSupportedType(aType)) {
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return tracks;
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}
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const MediaCodecs& codecs = aType.ExtendedType().Codecs();
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if (codecs.IsEmpty()) {
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// Codecs must be specified for ogg as it can't be implied.
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return tracks;
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}
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for (const auto& codec : codecs.Range()) {
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if (codec.EqualsLiteral("opus") || codec.EqualsLiteral("vorbis") ||
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codec.EqualsLiteral("flac")) {
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tracks.AppendElement(
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CreateTrackInfoWithMIMETypeAndContainerTypeExtraParameters(
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"audio/"_ns + NS_ConvertUTF16toUTF8(codec), aType));
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} else {
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MOZ_ASSERT(codec.EqualsLiteral("theora"));
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tracks.AppendElement(
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CreateTrackInfoWithMIMETypeAndContainerTypeExtraParameters(
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"video/"_ns + NS_ConvertUTF16toUTF8(codec), aType));
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}
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}
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return tracks;
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}
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} // namespace mozilla
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