| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "media/blink/webmediaplayer_impl.h" |
| |
| #include <algorithm> |
| #include <limits> |
| #include <string> |
| #include <vector> |
| |
| #include "base/bind.h" |
| #include "base/callback.h" |
| #include "base/callback_helpers.h" |
| #include "base/debug/alias.h" |
| #include "base/debug/crash_logging.h" |
| #include "base/debug/trace_event.h" |
| #include "base/float_util.h" |
| #include "base/message_loop/message_loop_proxy.h" |
| #include "base/metrics/histogram.h" |
| #include "base/single_thread_task_runner.h" |
| #include "base/synchronization/waitable_event.h" |
| #include "cc/blink/web_layer_impl.h" |
| #include "cc/layers/video_layer.h" |
| #include "gpu/GLES2/gl2extchromium.h" |
| #include "gpu/command_buffer/common/mailbox_holder.h" |
| #include "media/audio/null_audio_sink.h" |
| #include "media/base/audio_hardware_config.h" |
| #include "media/base/bind_to_current_loop.h" |
| #include "media/base/cdm_context.h" |
| #include "media/base/limits.h" |
| #include "media/base/media_log.h" |
| #include "media/base/pipeline.h" |
| #include "media/base/text_renderer.h" |
| #include "media/base/video_frame.h" |
| #include "media/blink/buffered_data_source.h" |
| #include "media/blink/encrypted_media_player_support.h" |
| #include "media/blink/texttrack_impl.h" |
| #include "media/blink/webaudiosourceprovider_impl.h" |
| #include "media/blink/webcontentdecryptionmodule_impl.h" |
| #include "media/blink/webinbandtexttrack_impl.h" |
| #include "media/blink/webmediaplayer_delegate.h" |
| #include "media/blink/webmediaplayer_params.h" |
| #include "media/blink/webmediaplayer_util.h" |
| #include "media/blink/webmediasource_impl.h" |
| #include "media/filters/audio_renderer_impl.h" |
| #include "media/filters/chunk_demuxer.h" |
| #include "media/filters/ffmpeg_audio_decoder.h" |
| #include "media/filters/ffmpeg_demuxer.h" |
| #include "media/filters/ffmpeg_video_decoder.h" |
| #include "media/filters/gpu_video_accelerator_factories.h" |
| #include "media/filters/gpu_video_decoder.h" |
| #include "media/filters/opus_audio_decoder.h" |
| #include "media/filters/renderer_impl.h" |
| #include "media/filters/video_renderer_impl.h" |
| #include "media/filters/vpx_video_decoder.h" |
| #include "third_party/WebKit/public/platform/WebMediaSource.h" |
| #include "third_party/WebKit/public/platform/WebRect.h" |
| #include "third_party/WebKit/public/platform/WebSize.h" |
| #include "third_party/WebKit/public/platform/WebString.h" |
| #include "third_party/WebKit/public/platform/WebURL.h" |
| #include "third_party/WebKit/public/web/WebLocalFrame.h" |
| #include "third_party/WebKit/public/web/WebRuntimeFeatures.h" |
| #include "third_party/WebKit/public/web/WebSecurityOrigin.h" |
| #include "third_party/WebKit/public/web/WebView.h" |
| |
| using blink::WebCanvas; |
| using blink::WebMediaPlayer; |
| using blink::WebRect; |
| using blink::WebSize; |
| using blink::WebString; |
| |
| namespace { |
| |
| // Limits the range of playback rate. |
| // |
| // TODO(kylep): Revisit these. |
| // |
| // Vista has substantially lower performance than XP or Windows7. If you speed |
| // up a video too much, it can't keep up, and rendering stops updating except on |
| // the time bar. For really high speeds, audio becomes a bottleneck and we just |
| // use up the data we have, which may not achieve the speed requested, but will |
| // not crash the tab. |
| // |
| // A very slow speed, ie 0.00000001x, causes the machine to lock up. (It seems |
| // like a busy loop). It gets unresponsive, although its not completely dead. |
| // |
| // Also our timers are not very accurate (especially for ogg), which becomes |
| // evident at low speeds and on Vista. Since other speeds are risky and outside |
| // the norms, we think 1/16x to 16x is a safe and useful range for now. |
| const double kMinRate = 0.0625; |
| const double kMaxRate = 16.0; |
| |
| class SyncPointClientImpl : public media::VideoFrame::SyncPointClient { |
| public: |
| explicit SyncPointClientImpl( |
| blink::WebGraphicsContext3D* web_graphics_context) |
| : web_graphics_context_(web_graphics_context) {} |
| ~SyncPointClientImpl() override {} |
| uint32 InsertSyncPoint() override { |
| return web_graphics_context_->insertSyncPoint(); |
| } |
| void WaitSyncPoint(uint32 sync_point) override { |
| web_graphics_context_->waitSyncPoint(sync_point); |
| } |
| |
| private: |
| blink::WebGraphicsContext3D* web_graphics_context_; |
| }; |
| |
| } // namespace |
| |
| namespace media { |
| |
| class BufferedDataSourceHostImpl; |
| |
| #define COMPILE_ASSERT_MATCHING_ENUM(name) \ |
| COMPILE_ASSERT(static_cast<int>(WebMediaPlayer::CORSMode ## name) == \ |
| static_cast<int>(BufferedResourceLoader::k ## name), \ |
| mismatching_enums) |
| COMPILE_ASSERT_MATCHING_ENUM(Unspecified); |
| COMPILE_ASSERT_MATCHING_ENUM(Anonymous); |
| COMPILE_ASSERT_MATCHING_ENUM(UseCredentials); |
| #undef COMPILE_ASSERT_MATCHING_ENUM |
| |
| #define BIND_TO_RENDER_LOOP(function) \ |
| (DCHECK(main_task_runner_->BelongsToCurrentThread()), \ |
| BindToCurrentLoop(base::Bind(function, AsWeakPtr()))) |
| |
| #define BIND_TO_RENDER_LOOP1(function, arg1) \ |
| (DCHECK(main_task_runner_->BelongsToCurrentThread()), \ |
| BindToCurrentLoop(base::Bind(function, AsWeakPtr(), arg1))) |
| |
| static void LogMediaSourceError(const scoped_refptr<MediaLog>& media_log, |
| const std::string& error) { |
| media_log->AddEvent(media_log->CreateMediaSourceErrorEvent(error)); |
| } |
| |
| WebMediaPlayerImpl::WebMediaPlayerImpl( |
| blink::WebLocalFrame* frame, |
| blink::WebMediaPlayerClient* client, |
| base::WeakPtr<WebMediaPlayerDelegate> delegate, |
| scoped_ptr<Renderer> renderer, |
| scoped_ptr<CdmFactory> cdm_factory, |
| const WebMediaPlayerParams& params) |
| : frame_(frame), |
| network_state_(WebMediaPlayer::NetworkStateEmpty), |
| ready_state_(WebMediaPlayer::ReadyStateHaveNothing), |
| preload_(BufferedDataSource::AUTO), |
| main_task_runner_(base::MessageLoopProxy::current()), |
| media_task_runner_(params.media_task_runner()), |
| media_log_(params.media_log()), |
| pipeline_(media_task_runner_, media_log_.get()), |
| load_type_(LoadTypeURL), |
| opaque_(false), |
| paused_(true), |
| seeking_(false), |
| playback_rate_(0.0f), |
| ended_(false), |
| pending_seek_(false), |
| pending_seek_seconds_(0.0f), |
| should_notify_time_changed_(false), |
| client_(client), |
| delegate_(delegate), |
| defer_load_cb_(params.defer_load_cb()), |
| gpu_factories_(params.gpu_factories()), |
| supports_save_(true), |
| chunk_demuxer_(NULL), |
| compositor_task_runner_(params.compositor_task_runner()), |
| compositor_(new VideoFrameCompositor( |
| BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnNaturalSizeChanged), |
| BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnOpacityChanged))), |
| text_track_index_(0), |
| encrypted_media_support_( |
| cdm_factory.Pass(), |
| client, |
| base::Bind(&WebMediaPlayerImpl::SetCdm, AsWeakPtr())), |
| audio_hardware_config_(params.audio_hardware_config()), |
| renderer_(renderer.Pass()) { |
| // Threaded compositing isn't enabled universally yet. |
| if (!compositor_task_runner_.get()) |
| compositor_task_runner_ = base::MessageLoopProxy::current(); |
| |
| media_log_->AddEvent( |
| media_log_->CreateEvent(MediaLogEvent::WEBMEDIAPLAYER_CREATED)); |
| |
| if (params.initial_cdm()) { |
| SetCdm( |
| ToWebContentDecryptionModuleImpl(params.initial_cdm())->GetCdmContext(), |
| base::Bind(&IgnoreCdmAttached)); |
| } |
| |
| // TODO(xhwang): When we use an external Renderer, many methods won't work, |
| // e.g. GetCurrentFrameFromCompositor(). Fix this in a future CL. |
| if (renderer_) |
| return; |
| |
| // |gpu_factories_| requires that its entry points be called on its |
| // |GetTaskRunner()|. Since |pipeline_| will own decoders created from the |
| // factories, require that their message loops are identical. |
| DCHECK(!gpu_factories_.get() || |
| (gpu_factories_->GetTaskRunner() == media_task_runner_.get())); |
| |
| // Use the null sink if no sink was provided. |
| audio_source_provider_ = new WebAudioSourceProviderImpl( |
| params.audio_renderer_sink().get() |
| ? params.audio_renderer_sink() |
| : new NullAudioSink(media_task_runner_)); |
| } |
| |
| WebMediaPlayerImpl::~WebMediaPlayerImpl() { |
| client_->setWebLayer(NULL); |
| |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| media_log_->AddEvent( |
| media_log_->CreateEvent(MediaLogEvent::WEBMEDIAPLAYER_DESTROYED)); |
| |
| if (delegate_) |
| delegate_->PlayerGone(this); |
| |
| // Abort any pending IO so stopping the pipeline doesn't get blocked. |
| if (data_source_) |
| data_source_->Abort(); |
| if (chunk_demuxer_) { |
| chunk_demuxer_->Shutdown(); |
| chunk_demuxer_ = NULL; |
| } |
| |
| gpu_factories_ = NULL; |
| |
| // Make sure to kill the pipeline so there's no more media threads running. |
| // Note: stopping the pipeline might block for a long time. |
| base::WaitableEvent waiter(false, false); |
| pipeline_.Stop( |
| base::Bind(&base::WaitableEvent::Signal, base::Unretained(&waiter))); |
| waiter.Wait(); |
| |
| compositor_task_runner_->DeleteSoon(FROM_HERE, compositor_); |
| } |
| |
| void WebMediaPlayerImpl::load(LoadType load_type, const blink::WebURL& url, |
| CORSMode cors_mode) { |
| DVLOG(1) << __FUNCTION__ << "(" << load_type << ", " << url << ", " |
| << cors_mode << ")"; |
| if (!defer_load_cb_.is_null()) { |
| defer_load_cb_.Run(base::Bind( |
| &WebMediaPlayerImpl::DoLoad, AsWeakPtr(), load_type, url, cors_mode)); |
| return; |
| } |
| DoLoad(load_type, url, cors_mode); |
| } |
| |
| void WebMediaPlayerImpl::DoLoad(LoadType load_type, |
| const blink::WebURL& url, |
| CORSMode cors_mode) { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| GURL gurl(url); |
| ReportMediaSchemeUma(gurl); |
| |
| // Set subresource URL for crash reporting. |
| base::debug::SetCrashKeyValue("subresource_url", gurl.spec()); |
| |
| load_type_ = load_type; |
| |
| SetNetworkState(WebMediaPlayer::NetworkStateLoading); |
| SetReadyState(WebMediaPlayer::ReadyStateHaveNothing); |
| media_log_->AddEvent(media_log_->CreateLoadEvent(url.spec())); |
| |
| // Media source pipelines can start immediately. |
| if (load_type == LoadTypeMediaSource) { |
| supports_save_ = false; |
| StartPipeline(); |
| return; |
| } |
| |
| // Otherwise it's a regular request which requires resolving the URL first. |
| data_source_.reset(new BufferedDataSource( |
| url, |
| static_cast<BufferedResourceLoader::CORSMode>(cors_mode), |
| main_task_runner_, |
| frame_, |
| media_log_.get(), |
| &buffered_data_source_host_, |
| base::Bind(&WebMediaPlayerImpl::NotifyDownloading, AsWeakPtr()))); |
| data_source_->Initialize( |
| base::Bind(&WebMediaPlayerImpl::DataSourceInitialized, AsWeakPtr())); |
| data_source_->SetPreload(preload_); |
| } |
| |
| void WebMediaPlayerImpl::play() { |
| DVLOG(1) << __FUNCTION__; |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| paused_ = false; |
| pipeline_.SetPlaybackRate(playback_rate_); |
| if (data_source_) |
| data_source_->MediaIsPlaying(); |
| |
| media_log_->AddEvent(media_log_->CreateEvent(MediaLogEvent::PLAY)); |
| |
| if (delegate_ && playback_rate_ > 0) |
| delegate_->DidPlay(this); |
| } |
| |
| void WebMediaPlayerImpl::pause() { |
| DVLOG(1) << __FUNCTION__; |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| const bool was_already_paused = paused_ || playback_rate_ == 0; |
| paused_ = true; |
| pipeline_.SetPlaybackRate(0.0f); |
| if (data_source_) |
| data_source_->MediaIsPaused(); |
| paused_time_ = pipeline_.GetMediaTime(); |
| |
| media_log_->AddEvent(media_log_->CreateEvent(MediaLogEvent::PAUSE)); |
| |
| if (!was_already_paused && delegate_) |
| delegate_->DidPause(this); |
| } |
| |
| bool WebMediaPlayerImpl::supportsSave() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| return supports_save_; |
| } |
| |
| void WebMediaPlayerImpl::seek(double seconds) { |
| DVLOG(1) << __FUNCTION__ << "(" << seconds << "s)"; |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| ended_ = false; |
| |
| if (ready_state_ > WebMediaPlayer::ReadyStateHaveMetadata) |
| SetReadyState(WebMediaPlayer::ReadyStateHaveMetadata); |
| |
| base::TimeDelta seek_time = ConvertSecondsToTimestamp(seconds); |
| |
| if (seeking_) { |
| pending_seek_ = true; |
| pending_seek_seconds_ = seconds; |
| if (chunk_demuxer_) |
| chunk_demuxer_->CancelPendingSeek(seek_time); |
| return; |
| } |
| |
| media_log_->AddEvent(media_log_->CreateSeekEvent(seconds)); |
| |
| // Update our paused time. |
| if (paused_) |
| paused_time_ = seek_time; |
| |
| seeking_ = true; |
| |
| if (chunk_demuxer_) |
| chunk_demuxer_->StartWaitingForSeek(seek_time); |
| |
| // Kick off the asynchronous seek! |
| pipeline_.Seek( |
| seek_time, |
| BIND_TO_RENDER_LOOP1(&WebMediaPlayerImpl::OnPipelineSeeked, true)); |
| } |
| |
| void WebMediaPlayerImpl::setRate(double rate) { |
| DVLOG(1) << __FUNCTION__ << "(" << rate << ")"; |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| // TODO(kylep): Remove when support for negatives is added. Also, modify the |
| // following checks so rewind uses reasonable values also. |
| if (rate < 0.0) |
| return; |
| |
| // Limit rates to reasonable values by clamping. |
| if (rate != 0.0) { |
| if (rate < kMinRate) |
| rate = kMinRate; |
| else if (rate > kMaxRate) |
| rate = kMaxRate; |
| if (playback_rate_ == 0 && !paused_ && delegate_) |
| delegate_->DidPlay(this); |
| } else if (playback_rate_ != 0 && !paused_ && delegate_) { |
| delegate_->DidPause(this); |
| } |
| |
| playback_rate_ = rate; |
| if (!paused_) { |
| pipeline_.SetPlaybackRate(rate); |
| if (data_source_) |
| data_source_->MediaPlaybackRateChanged(rate); |
| } |
| } |
| |
| void WebMediaPlayerImpl::setVolume(double volume) { |
| DVLOG(1) << __FUNCTION__ << "(" << volume << ")"; |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| pipeline_.SetVolume(volume); |
| } |
| |
| #define COMPILE_ASSERT_MATCHING_ENUM(webkit_name, chromium_name) \ |
| COMPILE_ASSERT(static_cast<int>(WebMediaPlayer::webkit_name) == \ |
| static_cast<int>(BufferedDataSource::chromium_name), \ |
| mismatching_enums) |
| COMPILE_ASSERT_MATCHING_ENUM(PreloadNone, NONE); |
| COMPILE_ASSERT_MATCHING_ENUM(PreloadMetaData, METADATA); |
| COMPILE_ASSERT_MATCHING_ENUM(PreloadAuto, AUTO); |
| #undef COMPILE_ASSERT_MATCHING_ENUM |
| |
| void WebMediaPlayerImpl::setPreload(WebMediaPlayer::Preload preload) { |
| DVLOG(1) << __FUNCTION__ << "(" << preload << ")"; |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| preload_ = static_cast<BufferedDataSource::Preload>(preload); |
| if (data_source_) |
| data_source_->SetPreload(preload_); |
| } |
| |
| bool WebMediaPlayerImpl::hasVideo() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| return pipeline_metadata_.has_video; |
| } |
| |
| bool WebMediaPlayerImpl::hasAudio() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| return pipeline_metadata_.has_audio; |
| } |
| |
| blink::WebSize WebMediaPlayerImpl::naturalSize() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| return blink::WebSize(pipeline_metadata_.natural_size); |
| } |
| |
| bool WebMediaPlayerImpl::paused() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| return pipeline_.GetPlaybackRate() == 0.0f; |
| } |
| |
| bool WebMediaPlayerImpl::seeking() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| if (ready_state_ == WebMediaPlayer::ReadyStateHaveNothing) |
| return false; |
| |
| return seeking_; |
| } |
| |
| double WebMediaPlayerImpl::duration() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| if (ready_state_ == WebMediaPlayer::ReadyStateHaveNothing) |
| return std::numeric_limits<double>::quiet_NaN(); |
| |
| return GetPipelineDuration(); |
| } |
| |
| double WebMediaPlayerImpl::timelineOffset() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| if (pipeline_metadata_.timeline_offset.is_null()) |
| return std::numeric_limits<double>::quiet_NaN(); |
| |
| return pipeline_metadata_.timeline_offset.ToJsTime(); |
| } |
| |
| double WebMediaPlayerImpl::currentTime() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| DCHECK_NE(ready_state_, WebMediaPlayer::ReadyStateHaveNothing); |
| |
| // TODO(scherkus): Replace with an explicit ended signal to HTMLMediaElement, |
| // see http://crbug.com/409280 |
| if (ended_) |
| return duration(); |
| |
| return (paused_ ? paused_time_ : pipeline_.GetMediaTime()).InSecondsF(); |
| } |
| |
| WebMediaPlayer::NetworkState WebMediaPlayerImpl::networkState() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| return network_state_; |
| } |
| |
| WebMediaPlayer::ReadyState WebMediaPlayerImpl::readyState() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| return ready_state_; |
| } |
| |
| blink::WebTimeRanges WebMediaPlayerImpl::buffered() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| Ranges<base::TimeDelta> buffered_time_ranges = |
| pipeline_.GetBufferedTimeRanges(); |
| |
| const base::TimeDelta duration = pipeline_.GetMediaDuration(); |
| if (duration != kInfiniteDuration()) { |
| buffered_data_source_host_.AddBufferedTimeRanges( |
| &buffered_time_ranges, duration); |
| } |
| return ConvertToWebTimeRanges(buffered_time_ranges); |
| } |
| |
| blink::WebTimeRanges WebMediaPlayerImpl::seekable() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| if (ready_state_ < WebMediaPlayer::ReadyStateHaveMetadata) |
| return blink::WebTimeRanges(); |
| |
| const double seekable_end = duration(); |
| |
| // Allow a special exception for seeks to zero for streaming sources with a |
| // finite duration; this allows looping to work. |
| const bool allow_seek_to_zero = data_source_ && data_source_->IsStreaming() && |
| base::IsFinite(seekable_end); |
| |
| // TODO(dalecurtis): Technically this allows seeking on media which return an |
| // infinite duration so long as DataSource::IsStreaming() is false. While not |
| // expected, disabling this breaks semi-live players, http://crbug.com/427412. |
| const blink::WebTimeRange seekable_range( |
| 0.0, allow_seek_to_zero ? 0.0 : seekable_end); |
| return blink::WebTimeRanges(&seekable_range, 1); |
| } |
| |
| bool WebMediaPlayerImpl::didLoadingProgress() { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| bool pipeline_progress = pipeline_.DidLoadingProgress(); |
| bool data_progress = buffered_data_source_host_.DidLoadingProgress(); |
| return pipeline_progress || data_progress; |
| } |
| |
| void WebMediaPlayerImpl::paint(blink::WebCanvas* canvas, |
| const blink::WebRect& rect, |
| unsigned char alpha, |
| SkXfermode::Mode mode) { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| TRACE_EVENT0("media", "WebMediaPlayerImpl:paint"); |
| |
| // TODO(scherkus): Clarify paint() API contract to better understand when and |
| // why it's being called. For example, today paint() is called when: |
| // - We haven't reached HAVE_CURRENT_DATA and need to paint black |
| // - We're painting to a canvas |
| // See http://crbug.com/341225 http://crbug.com/342621 for details. |
| scoped_refptr<VideoFrame> video_frame = |
| GetCurrentFrameFromCompositor(); |
| |
| gfx::Rect gfx_rect(rect); |
| |
| skcanvas_video_renderer_.Paint(video_frame, |
| canvas, |
| gfx_rect, |
| alpha, |
| mode, |
| pipeline_metadata_.video_rotation); |
| } |
| |
| bool WebMediaPlayerImpl::hasSingleSecurityOrigin() const { |
| if (data_source_) |
| return data_source_->HasSingleOrigin(); |
| return true; |
| } |
| |
| bool WebMediaPlayerImpl::didPassCORSAccessCheck() const { |
| if (data_source_) |
| return data_source_->DidPassCORSAccessCheck(); |
| return false; |
| } |
| |
| double WebMediaPlayerImpl::mediaTimeForTimeValue(double timeValue) const { |
| return ConvertSecondsToTimestamp(timeValue).InSecondsF(); |
| } |
| |
| unsigned WebMediaPlayerImpl::decodedFrameCount() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| PipelineStatistics stats = pipeline_.GetStatistics(); |
| return stats.video_frames_decoded; |
| } |
| |
| unsigned WebMediaPlayerImpl::droppedFrameCount() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| PipelineStatistics stats = pipeline_.GetStatistics(); |
| return stats.video_frames_dropped; |
| } |
| |
| unsigned WebMediaPlayerImpl::audioDecodedByteCount() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| PipelineStatistics stats = pipeline_.GetStatistics(); |
| return stats.audio_bytes_decoded; |
| } |
| |
| unsigned WebMediaPlayerImpl::videoDecodedByteCount() const { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| PipelineStatistics stats = pipeline_.GetStatistics(); |
| return stats.video_bytes_decoded; |
| } |
| |
| bool WebMediaPlayerImpl::copyVideoTextureToPlatformTexture( |
| blink::WebGraphicsContext3D* web_graphics_context, |
| unsigned int texture, |
| unsigned int level, |
| unsigned int internal_format, |
| unsigned int type, |
| bool premultiply_alpha, |
| bool flip_y) { |
| TRACE_EVENT0("media", "WebMediaPlayerImpl:copyVideoTextureToPlatformTexture"); |
| |
| scoped_refptr<VideoFrame> video_frame = |
| GetCurrentFrameFromCompositor(); |
| |
| if (!video_frame.get()) |
| return false; |
| if (video_frame->format() != VideoFrame::NATIVE_TEXTURE) |
| return false; |
| |
| const gpu::MailboxHolder* mailbox_holder = video_frame->mailbox_holder(); |
| if (mailbox_holder->texture_target != GL_TEXTURE_2D) |
| return false; |
| |
| web_graphics_context->waitSyncPoint(mailbox_holder->sync_point); |
| uint32 source_texture = web_graphics_context->createAndConsumeTextureCHROMIUM( |
| GL_TEXTURE_2D, mailbox_holder->mailbox.name); |
| |
| // The video is stored in a unmultiplied format, so premultiply |
| // if necessary. |
| web_graphics_context->pixelStorei(GL_UNPACK_PREMULTIPLY_ALPHA_CHROMIUM, |
| premultiply_alpha); |
| // Application itself needs to take care of setting the right flip_y |
| // value down to get the expected result. |
| // flip_y==true means to reverse the video orientation while |
| // flip_y==false means to keep the intrinsic orientation. |
| web_graphics_context->pixelStorei(GL_UNPACK_FLIP_Y_CHROMIUM, flip_y); |
| web_graphics_context->copyTextureCHROMIUM(GL_TEXTURE_2D, |
| source_texture, |
| texture, |
| level, |
| internal_format, |
| type); |
| web_graphics_context->pixelStorei(GL_UNPACK_FLIP_Y_CHROMIUM, false); |
| web_graphics_context->pixelStorei(GL_UNPACK_PREMULTIPLY_ALPHA_CHROMIUM, |
| false); |
| |
| web_graphics_context->deleteTexture(source_texture); |
| web_graphics_context->flush(); |
| |
| SyncPointClientImpl client(web_graphics_context); |
| video_frame->UpdateReleaseSyncPoint(&client); |
| return true; |
| } |
| |
| WebMediaPlayer::MediaKeyException |
| WebMediaPlayerImpl::generateKeyRequest(const WebString& key_system, |
| const unsigned char* init_data, |
| unsigned init_data_length) { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| return encrypted_media_support_.GenerateKeyRequest( |
| frame_, key_system, init_data, init_data_length); |
| } |
| |
| WebMediaPlayer::MediaKeyException WebMediaPlayerImpl::addKey( |
| const WebString& key_system, |
| const unsigned char* key, |
| unsigned key_length, |
| const unsigned char* init_data, |
| unsigned init_data_length, |
| const WebString& session_id) { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| return encrypted_media_support_.AddKey( |
| key_system, key, key_length, init_data, init_data_length, session_id); |
| } |
| |
| WebMediaPlayer::MediaKeyException WebMediaPlayerImpl::cancelKeyRequest( |
| const WebString& key_system, |
| const WebString& session_id) { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| return encrypted_media_support_.CancelKeyRequest(key_system, session_id); |
| } |
| |
| void WebMediaPlayerImpl::setContentDecryptionModule( |
| blink::WebContentDecryptionModule* cdm, |
| blink::WebContentDecryptionModuleResult result) { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| // TODO(xhwang): Support setMediaKeys(0) if necessary: http://crbug.com/330324 |
| if (!cdm) { |
| result.completeWithError( |
| blink::WebContentDecryptionModuleExceptionNotSupportedError, 0, |
| "Null MediaKeys object is not supported."); |
| return; |
| } |
| |
| SetCdm(ToWebContentDecryptionModuleImpl(cdm)->GetCdmContext(), |
| BIND_TO_RENDER_LOOP1(&WebMediaPlayerImpl::OnCdmAttached, result)); |
| } |
| |
| void WebMediaPlayerImpl::OnEncryptedMediaInitData( |
| const std::string& init_data_type, |
| const std::vector<uint8>& init_data) { |
| DCHECK(!init_data_type.empty()); |
| |
| // Do not fire "encrypted" event if encrypted media is not enabled. |
| // TODO(xhwang): Handle this in |client_|. |
| if (!blink::WebRuntimeFeatures::isPrefixedEncryptedMediaEnabled() && |
| !blink::WebRuntimeFeatures::isEncryptedMediaEnabled()) { |
| return; |
| } |
| |
| // TODO(xhwang): Update this UMA name. |
| UMA_HISTOGRAM_COUNTS("Media.EME.NeedKey", 1); |
| |
| encrypted_media_support_.SetInitDataType(init_data_type); |
| |
| const uint8* init_data_ptr = init_data.empty() ? nullptr : &init_data[0]; |
| client_->encrypted(WebString::fromUTF8(init_data_type), init_data_ptr, |
| base::saturated_cast<unsigned int>(init_data.size())); |
| } |
| |
| void WebMediaPlayerImpl::SetCdm(CdmContext* cdm_context, |
| const CdmAttachedCB& cdm_attached_cb) { |
| pipeline_.SetCdm(cdm_context, cdm_attached_cb); |
| } |
| |
| void WebMediaPlayerImpl::OnCdmAttached( |
| blink::WebContentDecryptionModuleResult result, |
| bool success) { |
| if (success) { |
| result.complete(); |
| return; |
| } |
| |
| result.completeWithError( |
| blink::WebContentDecryptionModuleExceptionNotSupportedError, 0, |
| "Unable to set MediaKeys object"); |
| } |
| |
| void WebMediaPlayerImpl::OnPipelineSeeked(bool time_changed, |
| PipelineStatus status) { |
| DVLOG(1) << __FUNCTION__ << "(" << time_changed << ", " << status << ")"; |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| seeking_ = false; |
| if (pending_seek_) { |
| pending_seek_ = false; |
| seek(pending_seek_seconds_); |
| return; |
| } |
| |
| if (status != PIPELINE_OK) { |
| OnPipelineError(status); |
| return; |
| } |
| |
| // Update our paused time. |
| if (paused_) |
| paused_time_ = pipeline_.GetMediaTime(); |
| |
| should_notify_time_changed_ = time_changed; |
| } |
| |
| void WebMediaPlayerImpl::OnPipelineEnded() { |
| DVLOG(1) << __FUNCTION__; |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| // Ignore state changes until we've completed all outstanding seeks. |
| if (seeking_ || pending_seek_) |
| return; |
| |
| ended_ = true; |
| client_->timeChanged(); |
| } |
| |
| void WebMediaPlayerImpl::OnPipelineError(PipelineStatus error) { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| DCHECK_NE(error, PIPELINE_OK); |
| |
| if (ready_state_ == WebMediaPlayer::ReadyStateHaveNothing) { |
| // Any error that occurs before reaching ReadyStateHaveMetadata should |
| // be considered a format error. |
| SetNetworkState(WebMediaPlayer::NetworkStateFormatError); |
| return; |
| } |
| |
| SetNetworkState(PipelineErrorToNetworkState(error)); |
| |
| if (error == PIPELINE_ERROR_DECRYPT) |
| encrypted_media_support_.OnPipelineDecryptError(); |
| } |
| |
| void WebMediaPlayerImpl::OnPipelineMetadata( |
| PipelineMetadata metadata) { |
| DVLOG(1) << __FUNCTION__; |
| |
| pipeline_metadata_ = metadata; |
| |
| UMA_HISTOGRAM_ENUMERATION("Media.VideoRotation", |
| metadata.video_rotation, |
| VIDEO_ROTATION_MAX + 1); |
| SetReadyState(WebMediaPlayer::ReadyStateHaveMetadata); |
| |
| if (hasVideo()) { |
| DCHECK(!video_weblayer_); |
| scoped_refptr<cc::VideoLayer> layer = |
| cc::VideoLayer::Create(compositor_, pipeline_metadata_.video_rotation); |
| |
| if (pipeline_metadata_.video_rotation == VIDEO_ROTATION_90 || |
| pipeline_metadata_.video_rotation == VIDEO_ROTATION_270) { |
| gfx::Size size = pipeline_metadata_.natural_size; |
| pipeline_metadata_.natural_size = gfx::Size(size.height(), size.width()); |
| } |
| |
| video_weblayer_.reset(new cc_blink::WebLayerImpl(layer)); |
| video_weblayer_->setOpaque(opaque_); |
| client_->setWebLayer(video_weblayer_.get()); |
| } |
| } |
| |
| void WebMediaPlayerImpl::OnPipelineBufferingStateChanged( |
| BufferingState buffering_state) { |
| DVLOG(1) << __FUNCTION__ << "(" << buffering_state << ")"; |
| |
| // Ignore buffering state changes until we've completed all outstanding seeks. |
| if (seeking_ || pending_seek_) |
| return; |
| |
| // TODO(scherkus): Handle other buffering states when Pipeline starts using |
| // them and translate them ready state changes http://crbug.com/144683 |
| DCHECK_EQ(buffering_state, BUFFERING_HAVE_ENOUGH); |
| SetReadyState(WebMediaPlayer::ReadyStateHaveEnoughData); |
| |
| // Blink expects a timeChanged() in response to a seek(). |
| if (should_notify_time_changed_) |
| client_->timeChanged(); |
| } |
| |
| void WebMediaPlayerImpl::OnDemuxerOpened() { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| client_->mediaSourceOpened(new WebMediaSourceImpl( |
| chunk_demuxer_, base::Bind(&LogMediaSourceError, media_log_))); |
| } |
| |
| void WebMediaPlayerImpl::OnAddTextTrack( |
| const TextTrackConfig& config, |
| const AddTextTrackDoneCB& done_cb) { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| const WebInbandTextTrackImpl::Kind web_kind = |
| static_cast<WebInbandTextTrackImpl::Kind>(config.kind()); |
| const blink::WebString web_label = |
| blink::WebString::fromUTF8(config.label()); |
| const blink::WebString web_language = |
| blink::WebString::fromUTF8(config.language()); |
| const blink::WebString web_id = |
| blink::WebString::fromUTF8(config.id()); |
| |
| scoped_ptr<WebInbandTextTrackImpl> web_inband_text_track( |
| new WebInbandTextTrackImpl(web_kind, web_label, web_language, web_id, |
| text_track_index_++)); |
| |
| scoped_ptr<TextTrack> text_track(new TextTrackImpl( |
| main_task_runner_, client_, web_inband_text_track.Pass())); |
| |
| done_cb.Run(text_track.Pass()); |
| } |
| |
| void WebMediaPlayerImpl::DataSourceInitialized(bool success) { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| if (!success) { |
| SetNetworkState(WebMediaPlayer::NetworkStateFormatError); |
| return; |
| } |
| |
| StartPipeline(); |
| } |
| |
| void WebMediaPlayerImpl::NotifyDownloading(bool is_downloading) { |
| if (!is_downloading && network_state_ == WebMediaPlayer::NetworkStateLoading) |
| SetNetworkState(WebMediaPlayer::NetworkStateIdle); |
| else if (is_downloading && network_state_ == WebMediaPlayer::NetworkStateIdle) |
| SetNetworkState(WebMediaPlayer::NetworkStateLoading); |
| media_log_->AddEvent( |
| media_log_->CreateBooleanEvent( |
| MediaLogEvent::NETWORK_ACTIVITY_SET, |
| "is_downloading_data", is_downloading)); |
| } |
| |
| // TODO(xhwang): Move this to a factory class so that we can create different |
| // renderers. |
| scoped_ptr<Renderer> WebMediaPlayerImpl::CreateRenderer() { |
| // Create our audio decoders and renderer. |
| ScopedVector<AudioDecoder> audio_decoders; |
| |
| audio_decoders.push_back(new FFmpegAudioDecoder( |
| media_task_runner_, base::Bind(&LogMediaSourceError, media_log_))); |
| audio_decoders.push_back(new OpusAudioDecoder(media_task_runner_)); |
| |
| scoped_ptr<AudioRenderer> audio_renderer(new AudioRendererImpl( |
| media_task_runner_, audio_source_provider_.get(), audio_decoders.Pass(), |
| audio_hardware_config_, media_log_)); |
| |
| // Create our video decoders and renderer. |
| ScopedVector<VideoDecoder> video_decoders; |
| |
| if (gpu_factories_.get()) |
| video_decoders.push_back(new GpuVideoDecoder(gpu_factories_)); |
| |
| #if !defined(MEDIA_DISABLE_LIBVPX) |
| video_decoders.push_back(new VpxVideoDecoder(media_task_runner_)); |
| #endif // !defined(MEDIA_DISABLE_LIBVPX) |
| |
| video_decoders.push_back(new FFmpegVideoDecoder(media_task_runner_)); |
| |
| scoped_ptr<VideoRenderer> video_renderer(new VideoRendererImpl( |
| media_task_runner_, video_decoders.Pass(), true, media_log_)); |
| |
| // Create renderer. |
| return scoped_ptr<Renderer>(new RendererImpl( |
| media_task_runner_, audio_renderer.Pass(), video_renderer.Pass())); |
| } |
| |
| void WebMediaPlayerImpl::StartPipeline() { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| // Keep track if this is a MSE or non-MSE playback. |
| UMA_HISTOGRAM_BOOLEAN("Media.MSE.Playback", |
| (load_type_ == LoadTypeMediaSource)); |
| |
| LogCB mse_log_cb; |
| Demuxer::EncryptedMediaInitDataCB encrypted_media_init_data_cb = |
| BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnEncryptedMediaInitData); |
| |
| // Figure out which demuxer to use. |
| if (load_type_ != LoadTypeMediaSource) { |
| DCHECK(!chunk_demuxer_); |
| DCHECK(data_source_); |
| |
| demuxer_.reset(new FFmpegDemuxer(media_task_runner_, data_source_.get(), |
| encrypted_media_init_data_cb, media_log_)); |
| } else { |
| DCHECK(!chunk_demuxer_); |
| DCHECK(!data_source_); |
| |
| mse_log_cb = base::Bind(&LogMediaSourceError, media_log_); |
| |
| chunk_demuxer_ = new ChunkDemuxer( |
| BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnDemuxerOpened), |
| encrypted_media_init_data_cb, mse_log_cb, media_log_, true); |
| demuxer_.reset(chunk_demuxer_); |
| } |
| |
| // ... and we're ready to go! |
| seeking_ = true; |
| |
| if (!renderer_) |
| renderer_ = CreateRenderer(); |
| |
| pipeline_.Start( |
| demuxer_.get(), |
| renderer_.Pass(), |
| BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnPipelineEnded), |
| BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnPipelineError), |
| BIND_TO_RENDER_LOOP1(&WebMediaPlayerImpl::OnPipelineSeeked, false), |
| BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnPipelineMetadata), |
| BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnPipelineBufferingStateChanged), |
| base::Bind(&WebMediaPlayerImpl::FrameReady, base::Unretained(this)), |
| BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnDurationChanged), |
| BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnAddTextTrack)); |
| } |
| |
| void WebMediaPlayerImpl::SetNetworkState(WebMediaPlayer::NetworkState state) { |
| DVLOG(1) << __FUNCTION__ << "(" << state << ")"; |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| network_state_ = state; |
| // Always notify to ensure client has the latest value. |
| client_->networkStateChanged(); |
| } |
| |
| void WebMediaPlayerImpl::SetReadyState(WebMediaPlayer::ReadyState state) { |
| DVLOG(1) << __FUNCTION__ << "(" << state << ")"; |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| |
| if (state == WebMediaPlayer::ReadyStateHaveEnoughData && data_source_ && |
| data_source_->assume_fully_buffered() && |
| network_state_ == WebMediaPlayer::NetworkStateLoading) |
| SetNetworkState(WebMediaPlayer::NetworkStateLoaded); |
| |
| ready_state_ = state; |
| // Always notify to ensure client has the latest value. |
| client_->readyStateChanged(); |
| } |
| |
| blink::WebAudioSourceProvider* WebMediaPlayerImpl::audioSourceProvider() { |
| return audio_source_provider_.get(); |
| } |
| |
| double WebMediaPlayerImpl::GetPipelineDuration() const { |
| base::TimeDelta duration = pipeline_.GetMediaDuration(); |
| |
| // Return positive infinity if the resource is unbounded. |
| // http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-duration |
| if (duration == kInfiniteDuration()) |
| return std::numeric_limits<double>::infinity(); |
| |
| return duration.InSecondsF(); |
| } |
| |
| void WebMediaPlayerImpl::OnDurationChanged() { |
| if (ready_state_ == WebMediaPlayer::ReadyStateHaveNothing) |
| return; |
| |
| client_->durationChanged(); |
| } |
| |
| void WebMediaPlayerImpl::OnNaturalSizeChanged(gfx::Size size) { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| DCHECK_NE(ready_state_, WebMediaPlayer::ReadyStateHaveNothing); |
| TRACE_EVENT0("media", "WebMediaPlayerImpl::OnNaturalSizeChanged"); |
| |
| media_log_->AddEvent( |
| media_log_->CreateVideoSizeSetEvent(size.width(), size.height())); |
| pipeline_metadata_.natural_size = size; |
| |
| client_->sizeChanged(); |
| } |
| |
| void WebMediaPlayerImpl::OnOpacityChanged(bool opaque) { |
| DCHECK(main_task_runner_->BelongsToCurrentThread()); |
| DCHECK_NE(ready_state_, WebMediaPlayer::ReadyStateHaveNothing); |
| |
| opaque_ = opaque; |
| if (video_weblayer_) |
| video_weblayer_->setOpaque(opaque_); |
| } |
| |
| void WebMediaPlayerImpl::FrameReady( |
| const scoped_refptr<VideoFrame>& frame) { |
| compositor_task_runner_->PostTask( |
| FROM_HERE, |
| base::Bind(&VideoFrameCompositor::UpdateCurrentFrame, |
| base::Unretained(compositor_), |
| frame)); |
| } |
| |
| static void GetCurrentFrameAndSignal( |
| VideoFrameCompositor* compositor, |
| scoped_refptr<VideoFrame>* video_frame_out, |
| base::WaitableEvent* event) { |
| TRACE_EVENT0("media", "GetCurrentFrameAndSignal"); |
| *video_frame_out = compositor->GetCurrentFrame(); |
| event->Signal(); |
| } |
| |
| scoped_refptr<VideoFrame> |
| WebMediaPlayerImpl::GetCurrentFrameFromCompositor() { |
| TRACE_EVENT0("media", "WebMediaPlayerImpl::GetCurrentFrameFromCompositor"); |
| if (compositor_task_runner_->BelongsToCurrentThread()) |
| return compositor_->GetCurrentFrame(); |
| |
| // Use a posted task and waitable event instead of a lock otherwise |
| // WebGL/Canvas can see different content than what the compositor is seeing. |
| scoped_refptr<VideoFrame> video_frame; |
| base::WaitableEvent event(false, false); |
| compositor_task_runner_->PostTask(FROM_HERE, |
| base::Bind(&GetCurrentFrameAndSignal, |
| base::Unretained(compositor_), |
| &video_frame, |
| &event)); |
| event.Wait(); |
| return video_frame; |
| } |
| |
| } // namespace media |