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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "webkit/media/buffered_data_source.h" | 5 #include "webkit/media/buffered_data_source.h" |
| 6 | 6 |
| 7 #include "base/bind.h" | 7 #include "base/bind.h" |
| 8 #include "media/base/filter_host.h" | 8 #include "media/base/filter_host.h" |
| 9 #include "media/base/media_log.h" | 9 #include "media/base/media_log.h" |
| 10 #include "net/base/net_errors.h" | 10 #include "net/base/net_errors.h" |
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| 218 stop_signal_received_) { | 218 stop_signal_received_) { |
| 219 return; | 219 return; |
| 220 } | 220 } |
| 221 } | 221 } |
| 222 | 222 |
| 223 if (url_.SchemeIs(kHttpScheme) || url_.SchemeIs(kHttpsScheme)) { | 223 if (url_.SchemeIs(kHttpScheme) || url_.SchemeIs(kHttpsScheme)) { |
| 224 // Do an unbounded range request starting at the beginning. If the server | 224 // Do an unbounded range request starting at the beginning. If the server |
| 225 // responds with 200 instead of 206 we'll fall back into a streaming mode. | 225 // responds with 200 instead of 206 we'll fall back into a streaming mode. |
| 226 loader_ = CreateResourceLoader(0, kPositionNotSpecified); | 226 loader_ = CreateResourceLoader(0, kPositionNotSpecified); |
| 227 loader_->Start( | 227 loader_->Start( |
| 228 NewCallback(this, &BufferedDataSource::HttpInitialStartCallback), | 228 base::Bind(&BufferedDataSource::HttpInitialStartCallback, this), |
| 229 base::Bind(&BufferedDataSource::NetworkEventCallback, this), | 229 base::Bind(&BufferedDataSource::NetworkEventCallback, this), |
| 230 frame_); | 230 frame_); |
| 231 } else { | 231 } else { |
| 232 // For all other protocols, assume they support range request. We fetch | 232 // For all other protocols, assume they support range request. We fetch |
| 233 // the full range of the resource to obtain the instance size because | 233 // the full range of the resource to obtain the instance size because |
| 234 // we won't be served HTTP headers. | 234 // we won't be served HTTP headers. |
| 235 loader_ = CreateResourceLoader(kPositionNotSpecified, | 235 loader_ = CreateResourceLoader(kPositionNotSpecified, |
| 236 kPositionNotSpecified); | 236 kPositionNotSpecified); |
| 237 loader_->Start( | 237 loader_->Start( |
| 238 NewCallback(this, &BufferedDataSource::NonHttpInitialStartCallback), | 238 base::Bind(&BufferedDataSource::NonHttpInitialStartCallback, this), |
| 239 base::Bind(&BufferedDataSource::NetworkEventCallback, this), | 239 base::Bind(&BufferedDataSource::NetworkEventCallback, this), |
| 240 frame_); | 240 frame_); |
| 241 } | 241 } |
| 242 } | 242 } |
| 243 | 243 |
| 244 void BufferedDataSource::ReadTask( | 244 void BufferedDataSource::ReadTask( |
| 245 int64 position, | 245 int64 position, |
| 246 int read_size, | 246 int read_size, |
| 247 uint8* buffer) { | 247 uint8* buffer) { |
| 248 DCHECK(MessageLoop::current() == render_loop_); | 248 DCHECK(MessageLoop::current() == render_loop_); |
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| 299 | 299 |
| 300 { | 300 { |
| 301 // If there's no outstanding read then return early. | 301 // If there's no outstanding read then return early. |
| 302 base::AutoLock auto_lock(lock_); | 302 base::AutoLock auto_lock(lock_); |
| 303 if (read_callback_.is_null()) | 303 if (read_callback_.is_null()) |
| 304 return; | 304 return; |
| 305 } | 305 } |
| 306 | 306 |
| 307 loader_ = CreateResourceLoader(read_position_, kPositionNotSpecified); | 307 loader_ = CreateResourceLoader(read_position_, kPositionNotSpecified); |
| 308 loader_->Start( | 308 loader_->Start( |
| 309 NewCallback(this, &BufferedDataSource::PartialReadStartCallback), | 309 base::Bind(&BufferedDataSource::PartialReadStartCallback, this), |
| 310 base::Bind(&BufferedDataSource::NetworkEventCallback, this), | 310 base::Bind(&BufferedDataSource::NetworkEventCallback, this), |
| 311 frame_); | 311 frame_); |
| 312 } | 312 } |
| 313 | 313 |
| 314 void BufferedDataSource::SetPlaybackRateTask(float playback_rate) { | 314 void BufferedDataSource::SetPlaybackRateTask(float playback_rate) { |
| 315 DCHECK(MessageLoop::current() == render_loop_); | 315 DCHECK(MessageLoop::current() == render_loop_); |
| 316 DCHECK(loader_.get()); | 316 DCHECK(loader_.get()); |
| 317 | 317 |
| 318 playback_rate_ = playback_rate; | 318 playback_rate_ = playback_rate; |
| 319 loader_->SetPlaybackRate(playback_rate); | 319 loader_->SetPlaybackRate(playback_rate); |
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| 367 DCHECK(loader_); | 367 DCHECK(loader_); |
| 368 | 368 |
| 369 // First we prepare the intermediate read buffer for BufferedResourceLoader | 369 // First we prepare the intermediate read buffer for BufferedResourceLoader |
| 370 // to write to. | 370 // to write to. |
| 371 if (read_size_ > intermediate_read_buffer_size_) { | 371 if (read_size_ > intermediate_read_buffer_size_) { |
| 372 intermediate_read_buffer_.reset(new uint8[read_size_]); | 372 intermediate_read_buffer_.reset(new uint8[read_size_]); |
| 373 } | 373 } |
| 374 | 374 |
| 375 // Perform the actual read with BufferedResourceLoader. | 375 // Perform the actual read with BufferedResourceLoader. |
| 376 loader_->Read(read_position_, read_size_, intermediate_read_buffer_.get(), | 376 loader_->Read(read_position_, read_size_, intermediate_read_buffer_.get(), |
| 377 NewCallback(this, &BufferedDataSource::ReadCallback)); | 377 base::Bind(&BufferedDataSource::ReadCallback, this)); |
| 378 } | 378 } |
| 379 | 379 |
| 380 // Method to report the results of the current read request. Also reset all | 380 // Method to report the results of the current read request. Also reset all |
| 381 // the read parameters. | 381 // the read parameters. |
| 382 void BufferedDataSource::DoneRead_Locked(int error) { | 382 void BufferedDataSource::DoneRead_Locked(int error) { |
| 383 VLOG(1) << "DoneRead: " << error << " bytes"; | 383 VLOG(1) << "DoneRead: " << error << " bytes"; |
| 384 | 384 |
| 385 DCHECK(MessageLoop::current() == render_loop_); | 385 DCHECK(MessageLoop::current() == render_loop_); |
| 386 DCHECK(!read_callback_.is_null()); | 386 DCHECK(!read_callback_.is_null()); |
| 387 lock_.AssertAcquired(); | 387 lock_.AssertAcquired(); |
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| 439 loader_->Stop(); | 439 loader_->Stop(); |
| 440 } | 440 } |
| 441 | 441 |
| 442 if (error == net::ERR_INVALID_RESPONSE && using_range_request_) { | 442 if (error == net::ERR_INVALID_RESPONSE && using_range_request_) { |
| 443 // Assuming that the Range header was causing the problem. Retry without | 443 // Assuming that the Range header was causing the problem. Retry without |
| 444 // the Range header. | 444 // the Range header. |
| 445 using_range_request_ = false; | 445 using_range_request_ = false; |
| 446 loader_ = CreateResourceLoader(kPositionNotSpecified, | 446 loader_ = CreateResourceLoader(kPositionNotSpecified, |
| 447 kPositionNotSpecified); | 447 kPositionNotSpecified); |
| 448 loader_->Start( | 448 loader_->Start( |
| 449 NewCallback(this, &BufferedDataSource::HttpInitialStartCallback), | 449 base::Bind(&BufferedDataSource::HttpInitialStartCallback, this), |
| 450 base::Bind(&BufferedDataSource::NetworkEventCallback, this), | 450 base::Bind(&BufferedDataSource::NetworkEventCallback, this), |
| 451 frame_); | 451 frame_); |
| 452 return; | 452 return; |
| 453 } | 453 } |
| 454 | 454 |
| 455 // Reference to prevent destruction while inside the |initialize_cb_| | 455 // Reference to prevent destruction while inside the |initialize_cb_| |
| 456 // call. This is a temporary fix to prevent crashes caused by holding the | 456 // call. This is a temporary fix to prevent crashes caused by holding the |
| 457 // lock and running the destructor. | 457 // lock and running the destructor. |
| 458 // TODO: Review locking in this class and figure out a way to run the callback | 458 // TODO: Review locking in this class and figure out a way to run the callback |
| 459 // w/o the lock. | 459 // w/o the lock. |
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| 661 | 661 |
| 662 if (streaming_) | 662 if (streaming_) |
| 663 filter_host->SetStreaming(true); | 663 filter_host->SetStreaming(true); |
| 664 | 664 |
| 665 if (total_bytes_ != kPositionNotSpecified) | 665 if (total_bytes_ != kPositionNotSpecified) |
| 666 filter_host->SetTotalBytes(total_bytes_); | 666 filter_host->SetTotalBytes(total_bytes_); |
| 667 filter_host->SetBufferedBytes(buffered_bytes_); | 667 filter_host->SetBufferedBytes(buffered_bytes_); |
| 668 } | 668 } |
| 669 | 669 |
| 670 } // namespace webkit_media | 670 } // namespace webkit_media |
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