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https://gitlab.winehq.org/wine/wine-gecko.git
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318 lines
10 KiB
C++
318 lines
10 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "MediaEncoder.h"
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#include "MediaDecoder.h"
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#include "nsIPrincipal.h"
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#include "nsMimeTypes.h"
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#include "prlog.h"
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#include "mozilla/Preferences.h"
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#ifdef MOZ_OGG
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#include "OggWriter.h"
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#endif
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#ifdef MOZ_OPUS
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#include "OpusTrackEncoder.h"
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#endif
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#ifdef MOZ_WEBM_ENCODER
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#include "VorbisTrackEncoder.h"
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#include "VP8TrackEncoder.h"
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#include "WebMWriter.h"
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#endif
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#ifdef MOZ_OMX_ENCODER
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#include "OmxTrackEncoder.h"
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#include "ISOMediaWriter.h"
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#endif
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#ifdef LOG
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#undef LOG
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#endif
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#ifdef PR_LOGGING
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PRLogModuleInfo* gMediaEncoderLog;
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#define LOG(type, msg) PR_LOG(gMediaEncoderLog, type, msg)
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#else
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#define LOG(type, msg)
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#endif
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namespace mozilla {
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void
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MediaEncoder::NotifyQueuedTrackChanges(MediaStreamGraph* aGraph,
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TrackID aID,
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TrackRate aTrackRate,
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TrackTicks aTrackOffset,
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uint32_t aTrackEvents,
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const MediaSegment& aQueuedMedia)
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{
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// Process the incoming raw track data from MediaStreamGraph, called on the
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// thread of MediaStreamGraph.
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if (mAudioEncoder && aQueuedMedia.GetType() == MediaSegment::AUDIO) {
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mAudioEncoder->NotifyQueuedTrackChanges(aGraph, aID, aTrackRate,
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aTrackOffset, aTrackEvents,
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aQueuedMedia);
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} else if (mVideoEncoder && aQueuedMedia.GetType() == MediaSegment::VIDEO) {
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mVideoEncoder->NotifyQueuedTrackChanges(aGraph, aID, aTrackRate,
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aTrackOffset, aTrackEvents,
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aQueuedMedia);
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}
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}
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void
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MediaEncoder::NotifyRemoved(MediaStreamGraph* aGraph)
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{
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// In case that MediaEncoder does not receive a TRACK_EVENT_ENDED event.
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LOG(PR_LOG_DEBUG, ("NotifyRemoved in [MediaEncoder]."));
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if (mAudioEncoder) {
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mAudioEncoder->NotifyRemoved(aGraph);
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}
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if (mVideoEncoder) {
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mVideoEncoder->NotifyRemoved(aGraph);
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}
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}
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/* static */
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already_AddRefed<MediaEncoder>
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MediaEncoder::CreateEncoder(const nsAString& aMIMEType, uint8_t aTrackTypes)
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{
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#ifdef PR_LOGGING
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if (!gMediaEncoderLog) {
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gMediaEncoderLog = PR_NewLogModule("MediaEncoder");
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}
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#endif
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nsAutoPtr<ContainerWriter> writer;
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nsAutoPtr<AudioTrackEncoder> audioEncoder;
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nsAutoPtr<VideoTrackEncoder> videoEncoder;
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nsRefPtr<MediaEncoder> encoder;
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nsString mimeType;
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if (!aTrackTypes) {
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LOG(PR_LOG_ERROR, ("NO TrackTypes!!!"));
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return nullptr;
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}
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#ifdef MOZ_WEBM_ENCODER
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else if (MediaEncoder::IsWebMEncoderEnabled() &&
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(aMIMEType.EqualsLiteral(VIDEO_WEBM) ||
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(aTrackTypes & ContainerWriter::HAS_VIDEO))) {
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if (aTrackTypes & ContainerWriter::HAS_AUDIO) {
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audioEncoder = new VorbisTrackEncoder();
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NS_ENSURE_TRUE(audioEncoder, nullptr);
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}
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videoEncoder = new VP8TrackEncoder();
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writer = new WebMWriter(aTrackTypes);
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NS_ENSURE_TRUE(writer, nullptr);
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NS_ENSURE_TRUE(videoEncoder, nullptr);
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mimeType = NS_LITERAL_STRING(VIDEO_WEBM);
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}
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#endif //MOZ_WEBM_ENCODER
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#ifdef MOZ_OMX_ENCODER
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else if (MediaEncoder::IsOMXEncoderEnabled() &&
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(aMIMEType.EqualsLiteral(VIDEO_MP4) ||
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(aTrackTypes & ContainerWriter::HAS_VIDEO))) {
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if (aTrackTypes & ContainerWriter::HAS_AUDIO) {
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audioEncoder = new OmxAudioTrackEncoder();
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NS_ENSURE_TRUE(audioEncoder, nullptr);
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}
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videoEncoder = new OmxVideoTrackEncoder();
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writer = new ISOMediaWriter(aTrackTypes);
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NS_ENSURE_TRUE(writer, nullptr);
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NS_ENSURE_TRUE(videoEncoder, nullptr);
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mimeType = NS_LITERAL_STRING(VIDEO_MP4);
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}
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#endif // MOZ_OMX_ENCODER
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#ifdef MOZ_OGG
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else if (MediaDecoder::IsOggEnabled() && MediaDecoder::IsOpusEnabled() &&
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(aMIMEType.EqualsLiteral(AUDIO_OGG) ||
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(aTrackTypes & ContainerWriter::HAS_AUDIO))) {
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writer = new OggWriter();
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audioEncoder = new OpusTrackEncoder();
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NS_ENSURE_TRUE(writer, nullptr);
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NS_ENSURE_TRUE(audioEncoder, nullptr);
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mimeType = NS_LITERAL_STRING(AUDIO_OGG);
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}
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#endif // MOZ_OGG
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else {
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LOG(PR_LOG_ERROR, ("Can not find any encoder to record this media stream"));
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return nullptr;
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}
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LOG(PR_LOG_DEBUG, ("Create encoder result:a[%d] v[%d] w[%d] mimeType = %s.",
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audioEncoder != nullptr, videoEncoder != nullptr,
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writer != nullptr, mimeType.get()));
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encoder = new MediaEncoder(writer.forget(), audioEncoder.forget(),
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videoEncoder.forget(), mimeType);
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return encoder.forget();
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}
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/**
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* GetEncodedData() runs as a state machine, starting with mState set to
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* GET_METADDATA, the procedure should be as follow:
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*
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* While non-stop
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* If mState is GET_METADDATA
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* Get the meta data from audio/video encoder
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* If a meta data is generated
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* Get meta data from audio/video encoder
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* Set mState to ENCODE_TRACK
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* Return the final container data
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*
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* If mState is ENCODE_TRACK
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* Get encoded track data from audio/video encoder
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* If a packet of track data is generated
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* Insert encoded track data into the container stream of writer
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* If the final container data is copied to aOutput
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* Return the copy of final container data
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* If this is the last packet of input stream
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* Set mState to ENCODE_DONE
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*
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* If mState is ENCODE_DONE or ENCODE_ERROR
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* Stop the loop
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*/
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void
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MediaEncoder::GetEncodedData(nsTArray<nsTArray<uint8_t> >* aOutputBufs,
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nsAString& aMIMEType)
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{
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MOZ_ASSERT(!NS_IsMainThread());
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aMIMEType = mMIMEType;
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bool reloop = true;
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while (reloop) {
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switch (mState) {
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case ENCODE_METADDATA: {
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LOG(PR_LOG_DEBUG, ("ENCODE_METADDATA TimeStamp = %f", GetEncodeTimeStamp()));
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nsresult rv = CopyMetadataToMuxer(mAudioEncoder.get());
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if (NS_FAILED(rv)) {
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LOG(PR_LOG_ERROR, ("Error! Fail to Set Audio Metadata"));
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break;
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}
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rv = CopyMetadataToMuxer(mVideoEncoder.get());
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if (NS_FAILED(rv)) {
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LOG(PR_LOG_ERROR, ("Error! Fail to Set Video Metadata"));
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break;
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}
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rv = mWriter->GetContainerData(aOutputBufs,
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ContainerWriter::GET_HEADER);
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if (NS_FAILED(rv)) {
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LOG(PR_LOG_ERROR,("Error! writer fail to generate header!"));
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mState = ENCODE_ERROR;
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break;
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}
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LOG(PR_LOG_DEBUG, ("Finish ENCODE_METADDATA TimeStamp = %f", GetEncodeTimeStamp()));
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mState = ENCODE_TRACK;
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break;
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}
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case ENCODE_TRACK: {
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LOG(PR_LOG_DEBUG, ("ENCODE_TRACK TimeStamp = %f", GetEncodeTimeStamp()));
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EncodedFrameContainer encodedData;
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nsresult rv = NS_OK;
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rv = WriteEncodedDataToMuxer(mAudioEncoder.get());
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if (NS_FAILED(rv)) {
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LOG(PR_LOG_ERROR, ("Error! Fail to write audio encoder data to muxer"));
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break;
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}
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LOG(PR_LOG_DEBUG, ("Audio encoded TimeStamp = %f", GetEncodeTimeStamp()));
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rv = WriteEncodedDataToMuxer(mVideoEncoder.get());
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if (NS_FAILED(rv)) {
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LOG(PR_LOG_ERROR, ("Fail to write video encoder data to muxer"));
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break;
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}
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LOG(PR_LOG_DEBUG, ("Video encoded TimeStamp = %f", GetEncodeTimeStamp()));
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// In audio only or video only case, let unavailable track's flag to be true.
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bool isAudioCompleted = (mAudioEncoder && mAudioEncoder->IsEncodingComplete()) || !mAudioEncoder;
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bool isVideoCompleted = (mVideoEncoder && mVideoEncoder->IsEncodingComplete()) || !mVideoEncoder;
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rv = mWriter->GetContainerData(aOutputBufs,
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isAudioCompleted && isVideoCompleted ?
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ContainerWriter::FLUSH_NEEDED : 0);
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if (NS_SUCCEEDED(rv)) {
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// Successfully get the copy of final container data from writer.
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reloop = false;
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}
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mState = (mWriter->IsWritingComplete()) ? ENCODE_DONE : ENCODE_TRACK;
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LOG(PR_LOG_DEBUG, ("END ENCODE_TRACK TimeStamp = %f "
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"mState = %d aComplete %d vComplete %d",
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GetEncodeTimeStamp(), mState, isAudioCompleted, isVideoCompleted));
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break;
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}
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case ENCODE_DONE:
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case ENCODE_ERROR:
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LOG(PR_LOG_DEBUG, ("MediaEncoder has been shutdown."));
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mShutdown = true;
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reloop = false;
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break;
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default:
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MOZ_CRASH("Invalid encode state");
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}
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}
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}
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nsresult
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MediaEncoder::WriteEncodedDataToMuxer(TrackEncoder *aTrackEncoder)
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{
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if (aTrackEncoder == nullptr) {
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return NS_OK;
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}
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if (aTrackEncoder->IsEncodingComplete()) {
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return NS_OK;
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}
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EncodedFrameContainer encodedVideoData;
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nsresult rv = aTrackEncoder->GetEncodedTrack(encodedVideoData);
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if (NS_FAILED(rv)) {
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// Encoding might be canceled.
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LOG(PR_LOG_ERROR, ("Error! Fail to get encoded data from video encoder."));
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mState = ENCODE_ERROR;
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return rv;
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}
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rv = mWriter->WriteEncodedTrack(encodedVideoData,
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aTrackEncoder->IsEncodingComplete() ?
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ContainerWriter::END_OF_STREAM : 0);
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if (NS_FAILED(rv)) {
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LOG(PR_LOG_ERROR, ("Error! Fail to write encoded video track to the media container."));
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mState = ENCODE_ERROR;
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}
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return rv;
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}
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nsresult
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MediaEncoder::CopyMetadataToMuxer(TrackEncoder *aTrackEncoder)
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{
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if (aTrackEncoder == nullptr) {
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return NS_OK;
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}
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nsRefPtr<TrackMetadataBase> meta = aTrackEncoder->GetMetadata();
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if (meta == nullptr) {
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LOG(PR_LOG_ERROR, ("Error! metadata = null"));
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mState = ENCODE_ERROR;
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return NS_ERROR_ABORT;
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}
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nsresult rv = mWriter->SetMetadata(meta);
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if (NS_FAILED(rv)) {
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LOG(PR_LOG_ERROR, ("Error! SetMetadata fail"));
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mState = ENCODE_ERROR;
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}
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return rv;
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}
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#ifdef MOZ_WEBM_ENCODER
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bool
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MediaEncoder::IsWebMEncoderEnabled()
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{
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return Preferences::GetBool("media.encoder.webm.enabled");
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}
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#endif
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#ifdef MOZ_OMX_ENCODER
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bool
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MediaEncoder::IsOMXEncoderEnabled()
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{
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return Preferences::GetBool("media.encoder.omx.enabled");
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}
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#endif
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}
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