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|
// Copyright (c) 2010 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 "webkit/glue/webmediaplayer_impl.h"
#include <limits>
#include "base/callback.h"
#include "base/command_line.h"
#include "media/base/limits.h"
#include "media/base/media_format.h"
#include "media/base/media_switches.h"
#include "media/base/video_frame.h"
#include "media/filters/ffmpeg_audio_decoder.h"
#include "media/filters/ffmpeg_demuxer.h"
#include "media/filters/ffmpeg_video_decoder.h"
#include "media/filters/null_audio_renderer.h"
#include "skia/ext/platform_canvas.h"
#include "third_party/WebKit/WebKit/chromium/public/WebRect.h"
#include "third_party/WebKit/WebKit/chromium/public/WebSize.h"
#include "third_party/WebKit/WebKit/chromium/public/WebURL.h"
#include "third_party/WebKit/WebKit/chromium/public/WebVideoFrame.h"
#include "webkit/glue/media/buffered_data_source.h"
#include "webkit/glue/media/media_resource_loader_bridge_factory.h"
#include "webkit/glue/media/simple_data_source.h"
#include "webkit/glue/media/video_renderer_impl.h"
#include "webkit/glue/media/web_video_renderer.h"
#include "webkit/glue/webvideoframe_impl.h"
using WebKit::WebCanvas;
using WebKit::WebRect;
using WebKit::WebSize;
namespace {
// Limits the maximum outstanding repaints posted on render thread.
// This number of 50 is a guess, it does not take too much memory on the task
// queue but gives up a pretty good latency on repaint.
const int kMaxOutstandingRepaints = 50;
// 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 float kMinRate = 0.0625f;
const float kMaxRate = 16.0f;
} // namespace
namespace webkit_glue {
/////////////////////////////////////////////////////////////////////////////
// WebMediaPlayerImpl::Proxy implementation
WebMediaPlayerImpl::Proxy::Proxy(MessageLoop* render_loop,
WebMediaPlayerImpl* webmediaplayer)
: render_loop_(render_loop),
webmediaplayer_(webmediaplayer),
outstanding_repaints_(0) {
DCHECK(render_loop_);
DCHECK(webmediaplayer_);
}
WebMediaPlayerImpl::Proxy::~Proxy() {
Detach();
}
void WebMediaPlayerImpl::Proxy::Repaint() {
AutoLock auto_lock(lock_);
if (outstanding_repaints_ < kMaxOutstandingRepaints) {
++outstanding_repaints_;
render_loop_->PostTask(FROM_HERE,
NewRunnableMethod(this, &WebMediaPlayerImpl::Proxy::RepaintTask));
}
}
void WebMediaPlayerImpl::Proxy::SetDataSource(
scoped_refptr<WebDataSource> data_source) {
data_source_ = data_source;
}
void WebMediaPlayerImpl::Proxy::SetVideoRenderer(
scoped_refptr<WebVideoRenderer> video_renderer) {
video_renderer_ = video_renderer;
}
void WebMediaPlayerImpl::Proxy::Paint(skia::PlatformCanvas* canvas,
const gfx::Rect& dest_rect) {
DCHECK(MessageLoop::current() == render_loop_);
if (video_renderer_) {
video_renderer_->Paint(canvas, dest_rect);
}
}
void WebMediaPlayerImpl::Proxy::SetSize(const gfx::Rect& rect) {
DCHECK(MessageLoop::current() == render_loop_);
if (video_renderer_) {
video_renderer_->SetRect(rect);
}
}
void WebMediaPlayerImpl::Proxy::AbortDataSource() {
DCHECK(MessageLoop::current() == render_loop_);
if (data_source_) {
data_source_->Abort();
}
}
void WebMediaPlayerImpl::Proxy::Detach() {
DCHECK(MessageLoop::current() == render_loop_);
webmediaplayer_ = NULL;
video_renderer_ = NULL;
data_source_ = NULL;
}
void WebMediaPlayerImpl::Proxy::PipelineInitializationCallback() {
render_loop_->PostTask(FROM_HERE, NewRunnableMethod(this,
&WebMediaPlayerImpl::Proxy::PipelineInitializationTask));
}
void WebMediaPlayerImpl::Proxy::PipelineSeekCallback() {
render_loop_->PostTask(FROM_HERE, NewRunnableMethod(this,
&WebMediaPlayerImpl::Proxy::PipelineSeekTask));
}
void WebMediaPlayerImpl::Proxy::PipelineEndedCallback() {
render_loop_->PostTask(FROM_HERE, NewRunnableMethod(this,
&WebMediaPlayerImpl::Proxy::PipelineEndedTask));
}
void WebMediaPlayerImpl::Proxy::PipelineErrorCallback() {
render_loop_->PostTask(FROM_HERE, NewRunnableMethod(this,
&WebMediaPlayerImpl::Proxy::PipelineErrorTask));
}
void WebMediaPlayerImpl::Proxy::NetworkEventCallback() {
render_loop_->PostTask(FROM_HERE, NewRunnableMethod(this,
&WebMediaPlayerImpl::Proxy::NetworkEventTask));
}
void WebMediaPlayerImpl::Proxy::RepaintTask() {
DCHECK(MessageLoop::current() == render_loop_);
{
AutoLock auto_lock(lock_);
--outstanding_repaints_;
DCHECK_GE(outstanding_repaints_, 0);
}
if (webmediaplayer_) {
webmediaplayer_->Repaint();
}
}
void WebMediaPlayerImpl::Proxy::PipelineInitializationTask() {
DCHECK(MessageLoop::current() == render_loop_);
if (webmediaplayer_) {
webmediaplayer_->OnPipelineInitialize();
}
}
void WebMediaPlayerImpl::Proxy::PipelineSeekTask() {
DCHECK(MessageLoop::current() == render_loop_);
if (webmediaplayer_) {
webmediaplayer_->OnPipelineSeek();
}
}
void WebMediaPlayerImpl::Proxy::PipelineEndedTask() {
DCHECK(MessageLoop::current() == render_loop_);
if (webmediaplayer_) {
webmediaplayer_->OnPipelineEnded();
}
}
void WebMediaPlayerImpl::Proxy::PipelineErrorTask() {
DCHECK(MessageLoop::current() == render_loop_);
if (webmediaplayer_) {
webmediaplayer_->OnPipelineError();
}
}
void WebMediaPlayerImpl::Proxy::NetworkEventTask() {
DCHECK(MessageLoop::current() == render_loop_);
if (webmediaplayer_) {
webmediaplayer_->OnNetworkEvent();
}
}
void WebMediaPlayerImpl::Proxy::GetCurrentFrame(
scoped_refptr<media::VideoFrame>* frame_out) {
if (video_renderer_)
video_renderer_->GetCurrentFrame(frame_out);
}
void WebMediaPlayerImpl::Proxy::PutCurrentFrame(
scoped_refptr<media::VideoFrame> frame) {
if (video_renderer_)
video_renderer_->PutCurrentFrame(frame);
}
/////////////////////////////////////////////////////////////////////////////
// WebMediaPlayerImpl implementation
WebMediaPlayerImpl::WebMediaPlayerImpl(
WebKit::WebMediaPlayerClient* client,
const media::MediaFilterCollection& collection,
MediaResourceLoaderBridgeFactory* bridge_factory_simple,
MediaResourceLoaderBridgeFactory* bridge_factory_buffered,
bool use_simple_data_source,
scoped_refptr<WebVideoRenderer> web_video_renderer)
: network_state_(WebKit::WebMediaPlayer::Empty),
ready_state_(WebKit::WebMediaPlayer::HaveNothing),
main_loop_(NULL),
filter_collection_(collection),
pipeline_thread_("PipelineThread"),
paused_(true),
playback_rate_(0.0f),
client_(client),
pipeline_stopped_(false, false) {
// Saves the current message loop.
DCHECK(!main_loop_);
main_loop_ = MessageLoop::current();
// Create the pipeline and its thread.
if (!pipeline_thread_.Start()) {
NOTREACHED() << "Could not start PipelineThread";
return;
}
pipeline_ = new media::PipelineImpl(pipeline_thread_.message_loop());
// Also we want to be notified of |main_loop_| destruction.
main_loop_->AddDestructionObserver(this);
// Creates the proxy.
proxy_ = new Proxy(main_loop_, this);
web_video_renderer->SetWebMediaPlayerImplProxy(proxy_);
proxy_->SetVideoRenderer(web_video_renderer);
// Set our pipeline callbacks.
pipeline_->SetPipelineEndedCallback(NewCallback(proxy_.get(),
&WebMediaPlayerImpl::Proxy::PipelineEndedCallback));
pipeline_->SetPipelineErrorCallback(NewCallback(proxy_.get(),
&WebMediaPlayerImpl::Proxy::PipelineErrorCallback));
pipeline_->SetNetworkEventCallback(NewCallback(proxy_.get(),
&WebMediaPlayerImpl::Proxy::NetworkEventCallback));
// A simple data source that keeps all data in memory.
scoped_refptr<SimpleDataSource> simple_data_source =
new SimpleDataSource(MessageLoop::current(), bridge_factory_simple);
// A sophisticated data source that does memory caching.
scoped_refptr<BufferedDataSource> buffered_data_source =
new BufferedDataSource(MessageLoop::current(), bridge_factory_buffered);
proxy_->SetDataSource(buffered_data_source);
if (use_simple_data_source) {
filter_collection_.push_back(simple_data_source);
filter_collection_.push_back(buffered_data_source);
} else {
filter_collection_.push_back(buffered_data_source);
filter_collection_.push_back(simple_data_source);
}
// Add in the default filter factories.
filter_collection_.push_back(new media::FFmpegDemuxer());
filter_collection_.push_back(new media::FFmpegAudioDecoder());
filter_collection_.push_back(new media::FFmpegVideoDecoder(NULL));
filter_collection_.push_back(new media::NullAudioRenderer());
}
WebMediaPlayerImpl::~WebMediaPlayerImpl() {
Destroy();
// Finally tell the |main_loop_| we don't want to be notified of destruction
// event.
if (main_loop_) {
main_loop_->RemoveDestructionObserver(this);
}
}
void WebMediaPlayerImpl::load(const WebKit::WebURL& url) {
DCHECK(MessageLoop::current() == main_loop_);
DCHECK(proxy_);
// Handle any volume changes that occured before load().
setVolume(GetClient()->volume());
// Initialize the pipeline.
SetNetworkState(WebKit::WebMediaPlayer::Loading);
SetReadyState(WebKit::WebMediaPlayer::HaveNothing);
pipeline_->Start(
filter_collection_,
url.spec(),
NewCallback(proxy_.get(),
&WebMediaPlayerImpl::Proxy::PipelineInitializationCallback));
}
void WebMediaPlayerImpl::cancelLoad() {
DCHECK(MessageLoop::current() == main_loop_);
}
void WebMediaPlayerImpl::play() {
DCHECK(MessageLoop::current() == main_loop_);
paused_ = false;
pipeline_->SetPlaybackRate(playback_rate_);
}
void WebMediaPlayerImpl::pause() {
DCHECK(MessageLoop::current() == main_loop_);
paused_ = true;
pipeline_->SetPlaybackRate(0.0f);
paused_time_ = pipeline_->GetCurrentTime();
}
bool WebMediaPlayerImpl::supportsFullscreen() const {
DCHECK(MessageLoop::current() == main_loop_);
return true;
}
bool WebMediaPlayerImpl::supportsSave() const {
DCHECK(MessageLoop::current() == main_loop_);
return true;
}
void WebMediaPlayerImpl::seek(float seconds) {
DCHECK(MessageLoop::current() == main_loop_);
// WebKit fires a seek(0) at the very start, however pipeline already does a
// seek(0) internally. Avoid doing seek(0) the second time because this will
// cause extra pre-rolling and will break servers without range request
// support.
//
// We still have to notify WebKit that time has changed otherwise
// HTMLMediaElement gets into an inconsistent state.
if (pipeline_->GetCurrentTime().ToInternalValue() == 0 && seconds == 0) {
GetClient()->timeChanged();
return;
}
// Drop our ready state if the media file isn't fully loaded.
if (!pipeline_->IsLoaded()) {
SetReadyState(WebKit::WebMediaPlayer::HaveMetadata);
}
// Try to preserve as much accuracy as possible.
float microseconds = seconds * base::Time::kMicrosecondsPerSecond;
base::TimeDelta seek_time =
base::TimeDelta::FromMicroseconds(static_cast<int64>(microseconds));
// Update our paused time.
if (paused_) {
paused_time_ = seek_time;
}
// Kick off the asynchronous seek!
pipeline_->Seek(
seek_time,
NewCallback(proxy_.get(),
&WebMediaPlayerImpl::Proxy::PipelineSeekCallback));
}
void WebMediaPlayerImpl::setEndTime(float seconds) {
DCHECK(MessageLoop::current() == main_loop_);
// TODO(hclam): add method call when it has been implemented.
return;
}
void WebMediaPlayerImpl::setRate(float rate) {
DCHECK(MessageLoop::current() == main_loop_);
// TODO(kylep): Remove when support for negatives is added. Also, modify the
// following checks so rewind uses reasonable values also.
if (rate < 0.0f)
return;
// Limit rates to reasonable values by clamping.
if (rate != 0.0f) {
if (rate < kMinRate)
rate = kMinRate;
else if (rate > kMaxRate)
rate = kMaxRate;
}
playback_rate_ = rate;
if (!paused_) {
pipeline_->SetPlaybackRate(rate);
}
}
void WebMediaPlayerImpl::setVolume(float volume) {
DCHECK(MessageLoop::current() == main_loop_);
pipeline_->SetVolume(volume);
}
void WebMediaPlayerImpl::setVisible(bool visible) {
DCHECK(MessageLoop::current() == main_loop_);
// TODO(hclam): add appropriate method call when pipeline has it implemented.
return;
}
bool WebMediaPlayerImpl::setAutoBuffer(bool autoBuffer) {
DCHECK(MessageLoop::current() == main_loop_);
return false;
}
bool WebMediaPlayerImpl::totalBytesKnown() {
DCHECK(MessageLoop::current() == main_loop_);
return pipeline_->GetTotalBytes() != 0;
}
bool WebMediaPlayerImpl::hasVideo() const {
DCHECK(MessageLoop::current() == main_loop_);
return pipeline_->IsRendered(media::mime_type::kMajorTypeVideo);
}
bool WebMediaPlayerImpl::hasAudio() const {
DCHECK(MessageLoop::current() == main_loop_);
return pipeline_->IsRendered(media::mime_type::kMajorTypeAudio);
}
WebKit::WebSize WebMediaPlayerImpl::naturalSize() const {
DCHECK(MessageLoop::current() == main_loop_);
size_t width, height;
pipeline_->GetVideoSize(&width, &height);
return WebKit::WebSize(width, height);
}
bool WebMediaPlayerImpl::paused() const {
DCHECK(MessageLoop::current() == main_loop_);
return pipeline_->GetPlaybackRate() == 0.0f;
}
bool WebMediaPlayerImpl::seeking() const {
DCHECK(MessageLoop::current() == main_loop_);
if (ready_state_ == WebKit::WebMediaPlayer::HaveNothing)
return false;
return ready_state_ == WebKit::WebMediaPlayer::HaveMetadata;
}
float WebMediaPlayerImpl::duration() const {
DCHECK(MessageLoop::current() == main_loop_);
base::TimeDelta duration = pipeline_->GetMediaDuration();
if (duration.InMicroseconds() == media::Limits::kMaxTimeInMicroseconds)
return std::numeric_limits<float>::infinity();
return static_cast<float>(duration.InSecondsF());
}
float WebMediaPlayerImpl::currentTime() const {
DCHECK(MessageLoop::current() == main_loop_);
if (paused_) {
return static_cast<float>(paused_time_.InSecondsF());
}
return static_cast<float>(pipeline_->GetCurrentTime().InSecondsF());
}
int WebMediaPlayerImpl::dataRate() const {
DCHECK(MessageLoop::current() == main_loop_);
// TODO(hclam): Add this method call if pipeline has it in the interface.
return 0;
}
const WebKit::WebTimeRanges& WebMediaPlayerImpl::buffered() {
DCHECK(MessageLoop::current() == main_loop_);
// Update buffered_ with the most recent buffered time.
if (buffered_.size() > 0) {
float buffered_time = static_cast<float>(
pipeline_->GetBufferedTime().InSecondsF());
if (buffered_time >= buffered_[0].start)
buffered_[0].end = buffered_time;
}
return buffered_;
}
float WebMediaPlayerImpl::maxTimeSeekable() const {
DCHECK(MessageLoop::current() == main_loop_);
// If we are performing streaming, we report that we cannot seek at all.
// We are using this flag to indicate if the data source supports seeking
// or not. We should be able to seek even if we are performing streaming.
// TODO(hclam): We need to update this when we have better caching.
if (pipeline_->IsStreaming())
return 0.0f;
return static_cast<float>(pipeline_->GetMediaDuration().InSecondsF());
}
unsigned long long WebMediaPlayerImpl::bytesLoaded() const {
DCHECK(MessageLoop::current() == main_loop_);
return pipeline_->GetBufferedBytes();
}
unsigned long long WebMediaPlayerImpl::totalBytes() const {
DCHECK(MessageLoop::current() == main_loop_);
return pipeline_->GetTotalBytes();
}
void WebMediaPlayerImpl::setSize(const WebSize& size) {
DCHECK(MessageLoop::current() == main_loop_);
DCHECK(proxy_);
proxy_->SetSize(gfx::Rect(0, 0, size.width, size.height));
}
void WebMediaPlayerImpl::paint(WebCanvas* canvas,
const WebRect& rect) {
DCHECK(MessageLoop::current() == main_loop_);
DCHECK(proxy_);
#if WEBKIT_USING_SKIA
proxy_->Paint(canvas, rect);
#elif WEBKIT_USING_CG
// Get the current scaling in X and Y.
CGAffineTransform mat = CGContextGetCTM(canvas);
float scale_x = sqrt(mat.a * mat.a + mat.b * mat.b);
float scale_y = sqrt(mat.c * mat.c + mat.d * mat.d);
float inverse_scale_x = SkScalarNearlyZero(scale_x) ? 0.0f : 1.0f / scale_x;
float inverse_scale_y = SkScalarNearlyZero(scale_y) ? 0.0f : 1.0f / scale_y;
int scaled_width = static_cast<int>(rect.width * fabs(scale_x));
int scaled_height = static_cast<int>(rect.height * fabs(scale_y));
// Make sure we don't create a huge canvas.
// TODO(hclam): Respect the aspect ratio.
if (scaled_width > static_cast<int>(media::Limits::kMaxCanvas))
scaled_width = media::Limits::kMaxCanvas;
if (scaled_height > static_cast<int>(media::Limits::kMaxCanvas))
scaled_height = media::Limits::kMaxCanvas;
// If there is no preexisting platform canvas, or if the size has
// changed, recreate the canvas. This is to avoid recreating the bitmap
// buffer over and over for each frame of video.
if (!skia_canvas_.get() ||
skia_canvas_->getDevice()->width() != scaled_width ||
skia_canvas_->getDevice()->height() != scaled_height) {
skia_canvas_.reset(
new skia::PlatformCanvas(scaled_width, scaled_height, true));
}
// Draw to our temporary skia canvas.
gfx::Rect normalized_rect(scaled_width, scaled_height);
proxy_->Paint(skia_canvas_.get(), normalized_rect);
// The mac coordinate system is flipped vertical from the normal skia
// coordinates. During painting of the frame, flip the coordinates
// system and, for simplicity, also translate the clip rectangle to
// start at 0,0.
CGContextSaveGState(canvas);
CGContextTranslateCTM(canvas, rect.x, rect.height + rect.y);
CGContextScaleCTM(canvas, inverse_scale_x, -inverse_scale_y);
// We need a local variable CGRect version for DrawToContext.
CGRect normalized_cgrect =
CGRectMake(normalized_rect.x(), normalized_rect.y(),
normalized_rect.width(), normalized_rect.height());
// Copy the frame rendered to our temporary skia canvas onto the passed in
// canvas.
skia_canvas_->getTopPlatformDevice().DrawToContext(canvas, 0, 0,
&normalized_cgrect);
CGContextRestoreGState(canvas);
#else
NOTIMPLEMENTED() << "We only support rendering to skia or CG";
#endif
}
bool WebMediaPlayerImpl::hasSingleSecurityOrigin() const {
// TODO(scherkus): we'll need to do something smarter here if/when we start to
// support formats that contain references to external resources (i.e., MP4s
// containing links to other MP4s). See http://crbug.com/25432
return true;
}
WebKit::WebMediaPlayer::MovieLoadType
WebMediaPlayerImpl::movieLoadType() const {
DCHECK(MessageLoop::current() == main_loop_);
// TODO(hclam): If the pipeline is performing streaming, we say that this is
// a live stream. But instead it should be a StoredStream if we have proper
// caching.
if (pipeline_->IsStreaming())
return WebKit::WebMediaPlayer::LiveStream;
return WebKit::WebMediaPlayer::Unknown;
}
WebKit::WebVideoFrame* WebMediaPlayerImpl::getCurrentFrame() {
scoped_refptr<media::VideoFrame> video_frame;
proxy_->GetCurrentFrame(&video_frame);
if (video_frame.get())
return new WebVideoFrameImpl(video_frame);
return NULL;
}
void WebMediaPlayerImpl::putCurrentFrame(
WebKit::WebVideoFrame* web_video_frame) {
if (web_video_frame) {
scoped_refptr<media::VideoFrame> video_frame =
WebVideoFrameImpl::toVideoFrame(web_video_frame);
proxy_->PutCurrentFrame(video_frame);
delete web_video_frame;
}
}
void WebMediaPlayerImpl::WillDestroyCurrentMessageLoop() {
Destroy();
main_loop_ = NULL;
}
void WebMediaPlayerImpl::Repaint() {
DCHECK(MessageLoop::current() == main_loop_);
GetClient()->repaint();
}
void WebMediaPlayerImpl::OnPipelineInitialize() {
DCHECK(MessageLoop::current() == main_loop_);
if (pipeline_->GetError() == media::PIPELINE_OK) {
// Only keep one time range starting from 0.
WebKit::WebTimeRanges new_buffered(static_cast<size_t>(1));
new_buffered[0].start = 0.0f;
new_buffered[0].end =
static_cast<float>(pipeline_->GetMediaDuration().InSecondsF());
buffered_.swap(new_buffered);
// Since we have initialized the pipeline, say we have everything otherwise
// we'll remain either loading/idle.
// TODO(hclam): change this to report the correct status.
SetReadyState(WebKit::WebMediaPlayer::HaveMetadata);
SetReadyState(WebKit::WebMediaPlayer::HaveEnoughData);
if (pipeline_->IsLoaded()) {
SetNetworkState(WebKit::WebMediaPlayer::Loaded);
}
} else {
// TODO(hclam): should use pipeline_->GetError() to determine the state
// properly and reports error using MediaError.
// WebKit uses FormatError to indicate an error for bogus URL or bad file.
// Since we are at the initialization stage we can safely treat every error
// as format error. Should post a task to call to |webmediaplayer_|.
SetNetworkState(WebKit::WebMediaPlayer::FormatError);
}
// Repaint to trigger UI update.
Repaint();
}
void WebMediaPlayerImpl::OnPipelineSeek() {
DCHECK(MessageLoop::current() == main_loop_);
if (pipeline_->GetError() == media::PIPELINE_OK) {
// Update our paused time.
if (paused_) {
paused_time_ = pipeline_->GetCurrentTime();
}
SetReadyState(WebKit::WebMediaPlayer::HaveEnoughData);
GetClient()->timeChanged();
}
}
void WebMediaPlayerImpl::OnPipelineEnded() {
DCHECK(MessageLoop::current() == main_loop_);
if (pipeline_->GetError() == media::PIPELINE_OK) {
GetClient()->timeChanged();
}
}
void WebMediaPlayerImpl::OnPipelineError() {
DCHECK(MessageLoop::current() == main_loop_);
switch (pipeline_->GetError()) {
case media::PIPELINE_OK:
case media::PIPELINE_ERROR_INITIALIZATION_FAILED:
case media::PIPELINE_ERROR_REQUIRED_FILTER_MISSING:
case media::PIPELINE_ERROR_COULD_NOT_RENDER:
case media::PIPELINE_ERROR_URL_NOT_FOUND:
case media::PIPELINE_ERROR_NETWORK:
case media::PIPELINE_ERROR_READ:
case media::DEMUXER_ERROR_COULD_NOT_OPEN:
case media::DEMUXER_ERROR_COULD_NOT_PARSE:
case media::DEMUXER_ERROR_NO_SUPPORTED_STREAMS:
case media::DEMUXER_ERROR_COULD_NOT_CREATE_THREAD:
// Format error.
SetNetworkState(WebMediaPlayer::FormatError);
break;
case media::PIPELINE_ERROR_DECODE:
case media::PIPELINE_ERROR_ABORT:
case media::PIPELINE_ERROR_OUT_OF_MEMORY:
case media::PIPELINE_ERROR_AUDIO_HARDWARE:
// Decode error.
SetNetworkState(WebMediaPlayer::DecodeError);
break;
}
// Repaint to trigger UI update.
Repaint();
}
void WebMediaPlayerImpl::OnNetworkEvent() {
DCHECK(MessageLoop::current() == main_loop_);
if (pipeline_->GetError() == media::PIPELINE_OK) {
if (pipeline_->IsNetworkActive()) {
SetNetworkState(WebKit::WebMediaPlayer::Loading);
} else {
// If we are inactive because we just finished receiving all the data,
// do one final repaint to show final progress.
if (bytesLoaded() == totalBytes() &&
network_state_ != WebKit::WebMediaPlayer::Idle)
Repaint();
SetNetworkState(WebKit::WebMediaPlayer::Idle);
}
}
}
void WebMediaPlayerImpl::SetNetworkState(
WebKit::WebMediaPlayer::NetworkState state) {
DCHECK(MessageLoop::current() == main_loop_);
// Always notify to ensure client has the latest value.
network_state_ = state;
GetClient()->networkStateChanged();
}
void WebMediaPlayerImpl::SetReadyState(
WebKit::WebMediaPlayer::ReadyState state) {
DCHECK(MessageLoop::current() == main_loop_);
// Always notify to ensure client has the latest value.
ready_state_ = state;
GetClient()->readyStateChanged();
}
void WebMediaPlayerImpl::Destroy() {
DCHECK(MessageLoop::current() == main_loop_);
// Tell the data source to abort any pending reads so that the pipeline is
// not blocked when issuing stop commands to the other filters.
if (proxy_)
proxy_->AbortDataSource();
// Make sure to kill the pipeline so there's no more media threads running.
// Note: stopping the pipeline might block for a long time.
pipeline_->Stop(NewCallback(this,
&WebMediaPlayerImpl::PipelineStoppedCallback));
pipeline_stopped_.Wait();
pipeline_thread_.Stop();
// And then detach the proxy, it may live on the render thread for a little
// longer until all the tasks are finished.
if (proxy_) {
proxy_->Detach();
proxy_ = NULL;
}
}
void WebMediaPlayerImpl::PipelineStoppedCallback() {
pipeline_stopped_.Signal();
}
WebKit::WebMediaPlayerClient* WebMediaPlayerImpl::GetClient() {
DCHECK(MessageLoop::current() == main_loop_);
DCHECK(client_);
return client_;
}
} // namespace webkit_glue
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