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https://github.com/mozilla/gecko-dev.git
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310 lines
10 KiB
C++
310 lines
10 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 "DecoderTraits.h"
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#include "MediaContainerType.h"
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#include "mozilla/glean/GleanMetrics.h"
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#include "mozilla/Preferences.h"
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#include "OggDecoder.h"
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#include "OggDemuxer.h"
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#include "WebMDecoder.h"
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#include "WebMDemuxer.h"
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#ifdef MOZ_ANDROID_HLS_SUPPORT
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# include "HLSDecoder.h"
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#endif
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#include "MP4Decoder.h"
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#include "MP4Demuxer.h"
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#include "MediaFormatReader.h"
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#include "MP3Decoder.h"
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#include "MP3Demuxer.h"
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#include "WaveDecoder.h"
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#include "WaveDemuxer.h"
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#include "ADTSDecoder.h"
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#include "ADTSDemuxer.h"
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#include "FlacDecoder.h"
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#include "FlacDemuxer.h"
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namespace mozilla {
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/* static */
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bool DecoderTraits::IsHttpLiveStreamingType(const MediaContainerType& aType) {
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const auto& mimeType = aType.Type();
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return // For m3u8.
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// https://tools.ietf.org/html/draft-pantos-http-live-streaming-19#section-10
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mimeType == MEDIAMIMETYPE("application/vnd.apple.mpegurl") ||
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// Some sites serve these as the informal m3u type.
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mimeType == MEDIAMIMETYPE("application/x-mpegurl") ||
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mimeType == MEDIAMIMETYPE("audio/mpegurl") ||
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mimeType == MEDIAMIMETYPE("audio/x-mpegurl");
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}
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/* static */
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bool DecoderTraits::IsMatroskaType(const MediaContainerType& aType) {
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const auto& mimeType = aType.Type();
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// https://matroska.org/technical/specs/notes.html
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return mimeType == MEDIAMIMETYPE("audio/x-matroska") ||
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mimeType == MEDIAMIMETYPE("video/x-matroska");
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}
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static CanPlayStatus CanHandleCodecsType(
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const MediaContainerType& aType, DecoderDoctorDiagnostics* aDiagnostics) {
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// We should have been given a codecs string, though it may be empty.
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MOZ_ASSERT(aType.ExtendedType().HaveCodecs());
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// Container type with the MIME type, no codecs.
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const MediaContainerType mimeType(aType.Type());
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if (OggDecoder::IsSupportedType(mimeType)) {
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if (OggDecoder::IsSupportedType(aType)) {
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return CANPLAY_YES;
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}
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// We can only reach this position if a particular codec was requested,
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// ogg is supported and working: the codec must be invalid.
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return CANPLAY_NO;
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}
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if (WaveDecoder::IsSupportedType(MediaContainerType(mimeType))) {
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if (WaveDecoder::IsSupportedType(aType)) {
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return CANPLAY_YES;
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}
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// We can only reach this position if a particular codec was requested, wave
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// is supported and working: the codec must be invalid or not supported.
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return CANPLAY_NO;
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}
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if (WebMDecoder::IsSupportedType(mimeType)) {
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if (WebMDecoder::IsSupportedType(aType)) {
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return CANPLAY_YES;
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}
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// We can only reach this position if a particular codec was requested,
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// webm is supported and working: the codec must be invalid.
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return CANPLAY_NO;
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}
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if (MP4Decoder::IsSupportedType(mimeType,
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/* DecoderDoctorDiagnostics* */ nullptr)) {
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if (MP4Decoder::IsSupportedType(aType, aDiagnostics)) {
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return CANPLAY_YES;
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}
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// We can only reach this position if a particular codec was requested,
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// fmp4 is supported and working: the codec must be invalid.
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return CANPLAY_NO;
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}
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if (MP3Decoder::IsSupportedType(mimeType)) {
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if (MP3Decoder::IsSupportedType(aType)) {
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return CANPLAY_YES;
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}
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// We can only reach this position if a particular codec was requested,
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// mp3 is supported and working: the codec must be invalid.
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return CANPLAY_NO;
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}
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if (ADTSDecoder::IsSupportedType(mimeType)) {
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if (ADTSDecoder::IsSupportedType(aType)) {
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return CANPLAY_YES;
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}
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// We can only reach this position if a particular codec was requested,
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// adts is supported and working: the codec must be invalid.
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return CANPLAY_NO;
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}
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if (FlacDecoder::IsSupportedType(mimeType)) {
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if (FlacDecoder::IsSupportedType(aType)) {
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return CANPLAY_YES;
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}
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// We can only reach this position if a particular codec was requested,
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// flac is supported and working: the codec must be invalid.
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return CANPLAY_NO;
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}
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return CANPLAY_MAYBE;
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}
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static CanPlayStatus CanHandleMediaType(
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const MediaContainerType& aType, DecoderDoctorDiagnostics* aDiagnostics) {
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if (DecoderTraits::IsHttpLiveStreamingType(aType)) {
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glean::hls::canplay_requested.Add();
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}
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#ifdef MOZ_ANDROID_HLS_SUPPORT
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if (HLSDecoder::IsSupportedType(aType)) {
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glean::hls::canplay_supported.Add();
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return CANPLAY_MAYBE;
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}
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#endif
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if (DecoderTraits::IsMatroskaType(aType)) {
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Telemetry::Accumulate(Telemetry::MEDIA_MKV_CANPLAY_REQUESTED, true);
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}
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if (aType.ExtendedType().HaveCodecs()) {
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CanPlayStatus result = CanHandleCodecsType(aType, aDiagnostics);
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if (result == CANPLAY_NO || result == CANPLAY_YES) {
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return result;
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}
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}
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// Container type with just the MIME type/subtype, no codecs.
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const MediaContainerType mimeType(aType.Type());
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if (OggDecoder::IsSupportedType(mimeType)) {
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return CANPLAY_MAYBE;
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}
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if (WaveDecoder::IsSupportedType(mimeType)) {
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return CANPLAY_MAYBE;
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}
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if (MP4Decoder::IsSupportedType(mimeType, aDiagnostics)) {
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return CANPLAY_MAYBE;
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}
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if (WebMDecoder::IsSupportedType(mimeType)) {
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return CANPLAY_MAYBE;
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}
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if (MP3Decoder::IsSupportedType(mimeType)) {
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return CANPLAY_MAYBE;
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}
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if (ADTSDecoder::IsSupportedType(mimeType)) {
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return CANPLAY_MAYBE;
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}
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if (FlacDecoder::IsSupportedType(mimeType)) {
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return CANPLAY_MAYBE;
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}
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return CANPLAY_NO;
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}
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/* static */
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CanPlayStatus DecoderTraits::CanHandleContainerType(
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const MediaContainerType& aContainerType,
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DecoderDoctorDiagnostics* aDiagnostics) {
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return CanHandleMediaType(aContainerType, aDiagnostics);
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}
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/* static */
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bool DecoderTraits::ShouldHandleMediaType(
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const char* aMIMEType, DecoderDoctorDiagnostics* aDiagnostics) {
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Maybe<MediaContainerType> containerType = MakeMediaContainerType(aMIMEType);
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if (!containerType) {
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return false;
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}
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if (WaveDecoder::IsSupportedType(*containerType)) {
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// We should not return true for Wave types, since there are some
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// Wave codecs actually in use in the wild that we don't support, and
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// we should allow those to be handled by plugins or helper apps.
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// Furthermore people can play Wave files on most platforms by other
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// means.
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return false;
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}
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return CanHandleMediaType(*containerType, aDiagnostics) != CANPLAY_NO;
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}
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/* static */
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already_AddRefed<MediaDataDemuxer> DecoderTraits::CreateDemuxer(
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const MediaContainerType& aType, MediaResource* aResource) {
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MOZ_ASSERT(NS_IsMainThread());
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RefPtr<MediaDataDemuxer> demuxer;
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if (MP4Decoder::IsSupportedType(aType,
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/* DecoderDoctorDiagnostics* */ nullptr)) {
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demuxer = new MP4Demuxer(aResource);
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} else if (MP3Decoder::IsSupportedType(aType)) {
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demuxer = new MP3Demuxer(aResource);
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} else if (ADTSDecoder::IsSupportedType(aType)) {
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demuxer = new ADTSDemuxer(aResource);
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} else if (WaveDecoder::IsSupportedType(aType)) {
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demuxer = new WAVDemuxer(aResource);
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} else if (FlacDecoder::IsSupportedType(aType)) {
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demuxer = new FlacDemuxer(aResource);
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} else if (OggDecoder::IsSupportedType(aType)) {
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demuxer = new OggDemuxer(aResource);
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} else if (WebMDecoder::IsSupportedType(aType)) {
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demuxer = new WebMDemuxer(aResource);
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}
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return demuxer.forget();
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}
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/* static */
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MediaFormatReader* DecoderTraits::CreateReader(const MediaContainerType& aType,
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MediaFormatReaderInit& aInit) {
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MOZ_ASSERT(NS_IsMainThread());
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RefPtr<MediaDataDemuxer> demuxer = CreateDemuxer(aType, aInit.mResource);
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if (!demuxer) {
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return nullptr;
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}
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MediaFormatReader* decoderReader = new MediaFormatReader(aInit, demuxer);
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if (OggDecoder::IsSupportedType(aType)) {
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static_cast<OggDemuxer*>(demuxer.get())
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->SetChainingEvents(&decoderReader->TimedMetadataProducer(),
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&decoderReader->MediaNotSeekableProducer());
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}
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return decoderReader;
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}
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/* static */
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bool DecoderTraits::IsSupportedInVideoDocument(const nsACString& aType) {
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// Forbid playing media in video documents if the user has opted
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// not to, using either the legacy WMF specific pref, or the newer
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// catch-all pref.
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if (!Preferences::GetBool("media.wmf.play-stand-alone", true) ||
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!Preferences::GetBool("media.play-stand-alone", true)) {
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return false;
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}
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Maybe<MediaContainerType> type = MakeMediaContainerType(aType);
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if (!type) {
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return false;
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}
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return OggDecoder::IsSupportedType(*type) ||
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WebMDecoder::IsSupportedType(*type) ||
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MP4Decoder::IsSupportedType(*type,
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/* DecoderDoctorDiagnostics* */ nullptr) ||
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MP3Decoder::IsSupportedType(*type) ||
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ADTSDecoder::IsSupportedType(*type) ||
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FlacDecoder::IsSupportedType(*type) ||
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#ifdef MOZ_ANDROID_HLS_SUPPORT
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HLSDecoder::IsSupportedType(*type) ||
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#endif
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false;
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}
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/* static */
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nsTArray<UniquePtr<TrackInfo>> DecoderTraits::GetTracksInfo(
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const MediaContainerType& aType) {
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// Container type with just the MIME type/subtype, no codecs.
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const MediaContainerType mimeType(aType.Type());
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if (OggDecoder::IsSupportedType(mimeType)) {
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return OggDecoder::GetTracksInfo(aType);
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}
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if (WaveDecoder::IsSupportedType(mimeType)) {
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return WaveDecoder::GetTracksInfo(aType);
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}
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if (MP4Decoder::IsSupportedType(mimeType, nullptr)) {
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return MP4Decoder::GetTracksInfo(aType);
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}
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if (WebMDecoder::IsSupportedType(mimeType)) {
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return WebMDecoder::GetTracksInfo(aType);
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}
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if (MP3Decoder::IsSupportedType(mimeType)) {
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return MP3Decoder::GetTracksInfo(aType);
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}
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if (ADTSDecoder::IsSupportedType(mimeType)) {
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return ADTSDecoder::GetTracksInfo(aType);
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}
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if (FlacDecoder::IsSupportedType(mimeType)) {
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return FlacDecoder::GetTracksInfo(aType);
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}
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return nsTArray<UniquePtr<TrackInfo>>();
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}
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} // namespace mozilla
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