/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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/. */
#include "OggDecoder.h"
#include "MediaContainerType.h"
#include "MediaDecoder.h"
#include "mozilla/StaticPrefs_media.h"
#include "nsMimeTypes.h"
namespace mozilla {
/* static */
bool OggDecoder::IsSupportedType(
const MediaContainerType& aContainerType) {
if (!StaticPrefs::media_ogg_enabled()) {
return false;
}
if (aContainerType.Type() != MEDIAMIMETYPE(AUDIO_OGG) &&
aContainerType.Type() != MEDIAMIMETYPE(
"application/ogg")) {
return false;
}
const MediaCodecs& codecs = aContainerType.ExtendedType().Codecs();
if (codecs.IsEmpty()) {
// Ogg guarantees that the only codecs it contained are supported.
return true;
}
// Verify that all the codecs specified are ones that we expect that
// we can play.
for (
const auto& codec : codecs.Range()) {
if ((MediaDecoder::IsOpusEnabled() && codec.EqualsLiteral(
"opus")) ||
codec.EqualsLiteral(
"vorbis") || codec.EqualsLiteral(
"flac")) {
continue;
}
// Some unsupported codec.
return false;
}
return true;
}
/* static */
nsTArray<UniquePtr<TrackInfo>> OggDecoder::GetTracksInfo(
const MediaContainerType& aType) {
nsTArray<UniquePtr<TrackInfo>> tracks;
if (!IsSupportedType(aType)) {
return tracks;
}
const MediaCodecs& codecs = aType.ExtendedType().Codecs();
if (codecs.IsEmpty()) {
// Codecs must be specified for ogg as it can't be implied.
return tracks;
}
for (
const auto& codec : codecs.Range()) {
if (codec.EqualsLiteral(
"opus") || codec.EqualsLiteral(
"vorbis") ||
codec.EqualsLiteral(
"flac")) {
tracks.AppendElement(
CreateTrackInfoWithMIMETypeAndContainerTypeExtraParameters(
"audio/"_ns + NS_ConvertUTF16toUTF8(codec), aType));
}
}
return tracks;
}
}
// namespace mozilla