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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 "media/blink/multibuffer_data_source.h" | 5 #include "media/blink/multibuffer_data_source.h" |
6 | 6 |
7 #include <utility> | 7 #include <utility> |
8 | 8 |
9 #include "base/bind.h" | 9 #include "base/bind.h" |
10 #include "base/callback_helpers.h" | 10 #include "base/callback_helpers.h" |
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257 if (cors_mode_ == UrlData::CORS_UNSPECIFIED) | 257 if (cors_mode_ == UrlData::CORS_UNSPECIFIED) |
258 return false; | 258 return false; |
259 // If init_cb is set, we initialization is not finished yet. | 259 // If init_cb is set, we initialization is not finished yet. |
260 if (!init_cb_.is_null()) | 260 if (!init_cb_.is_null()) |
261 return false; | 261 return false; |
262 if (failed_) | 262 if (failed_) |
263 return false; | 263 return false; |
264 return true; | 264 return true; |
265 } | 265 } |
266 | 266 |
267 void MultibufferDataSource::Abort() { | |
268 DCHECK(render_task_runner_->BelongsToCurrentThread()); | |
269 { | |
270 base::AutoLock auto_lock(lock_); | |
271 StopInternal_Locked(); | |
272 } | |
273 StopLoader(); | |
274 frame_ = NULL; | |
275 } | |
276 | |
277 void MultibufferDataSource::MediaPlaybackRateChanged(double playback_rate) { | 267 void MultibufferDataSource::MediaPlaybackRateChanged(double playback_rate) { |
278 DCHECK(render_task_runner_->BelongsToCurrentThread()); | 268 DCHECK(render_task_runner_->BelongsToCurrentThread()); |
279 DCHECK(reader_.get()); | 269 DCHECK(reader_.get()); |
280 | 270 |
281 if (playback_rate < 0.0) | 271 if (playback_rate < 0.0) |
282 return; | 272 return; |
283 | 273 |
284 playback_rate_ = playback_rate; | 274 playback_rate_ = playback_rate; |
285 cancel_on_defer_ = false; | 275 cancel_on_defer_ = false; |
286 UpdateBufferSizes(); | 276 UpdateBufferSizes(); |
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301 { | 291 { |
302 base::AutoLock auto_lock(lock_); | 292 base::AutoLock auto_lock(lock_); |
303 StopInternal_Locked(); | 293 StopInternal_Locked(); |
304 } | 294 } |
305 | 295 |
306 render_task_runner_->PostTask(FROM_HERE, | 296 render_task_runner_->PostTask(FROM_HERE, |
307 base::Bind(&MultibufferDataSource::StopLoader, | 297 base::Bind(&MultibufferDataSource::StopLoader, |
308 weak_factory_.GetWeakPtr())); | 298 weak_factory_.GetWeakPtr())); |
309 } | 299 } |
310 | 300 |
| 301 void MultibufferDataSource::Abort() { |
| 302 base::AutoLock auto_lock(lock_); |
| 303 DCHECK(init_cb_.is_null()); |
| 304 if (read_op_) |
| 305 ReadOperation::Run(std::move(read_op_), kAborted); |
| 306 |
| 307 // Abort does not call StopLoader() since it is typically called prior to a |
| 308 // seek or suspend. Let the loader logic make the decision about whether a new |
| 309 // loader is necessary upon the seek or resume. |
| 310 } |
| 311 |
311 void MultibufferDataSource::SetBitrate(int bitrate) { | 312 void MultibufferDataSource::SetBitrate(int bitrate) { |
312 render_task_runner_->PostTask( | 313 render_task_runner_->PostTask( |
313 FROM_HERE, base::Bind(&MultibufferDataSource::SetBitrateTask, | 314 FROM_HERE, base::Bind(&MultibufferDataSource::SetBitrateTask, |
314 weak_factory_.GetWeakPtr(), bitrate)); | 315 weak_factory_.GetWeakPtr(), bitrate)); |
315 } | 316 } |
316 | 317 |
317 void MultibufferDataSource::OnBufferingHaveEnough(bool always_cancel) { | 318 void MultibufferDataSource::OnBufferingHaveEnough(bool always_cancel) { |
318 DCHECK(render_task_runner_->BelongsToCurrentThread()); | 319 DCHECK(render_task_runner_->BelongsToCurrentThread()); |
319 if (reader_ && (always_cancel || (preload_ == METADATA && | 320 if (reader_ && (always_cancel || (preload_ == METADATA && |
320 !media_has_played_ && !IsStreaming()))) { | 321 !media_has_played_ && !IsStreaming()))) { |
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374 return streaming_; | 375 return streaming_; |
375 } | 376 } |
376 | 377 |
377 ///////////////////////////////////////////////////////////////////////////// | 378 ///////////////////////////////////////////////////////////////////////////// |
378 // This method is the place where actual read happens, | 379 // This method is the place where actual read happens, |
379 void MultibufferDataSource::ReadTask() { | 380 void MultibufferDataSource::ReadTask() { |
380 DCHECK(render_task_runner_->BelongsToCurrentThread()); | 381 DCHECK(render_task_runner_->BelongsToCurrentThread()); |
381 | 382 |
382 base::AutoLock auto_lock(lock_); | 383 base::AutoLock auto_lock(lock_); |
383 int bytes_read = 0; | 384 int bytes_read = 0; |
384 if (stop_signal_received_) | 385 if (stop_signal_received_ || !read_op_) |
385 return; | 386 return; |
386 DCHECK(read_op_); | |
387 DCHECK(read_op_->size()); | 387 DCHECK(read_op_->size()); |
388 | 388 |
389 if (!reader_) { | 389 if (!reader_) { |
390 CreateResourceLoader(read_op_->position(), kPositionNotSpecified); | 390 CreateResourceLoader(read_op_->position(), kPositionNotSpecified); |
391 } else { | 391 } else { |
392 reader_->Seek(read_op_->position()); | 392 reader_->Seek(read_op_->position()); |
393 } | 393 } |
394 | 394 |
395 int64_t available = reader_->Available(); | 395 int64_t available = reader_->Available(); |
396 if (available < 0) { | 396 if (available < 0) { |
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597 reader_->SetPinRange(back_buffer, kMaxBufferPreload + kPreloadHighExtra); | 597 reader_->SetPinRange(back_buffer, kMaxBufferPreload + kPreloadHighExtra); |
598 | 598 |
599 if (preload_ == METADATA) { | 599 if (preload_ == METADATA) { |
600 reader_->SetPreload(0, 0); | 600 reader_->SetPreload(0, 0); |
601 } else { | 601 } else { |
602 reader_->SetPreload(preload_high, preload); | 602 reader_->SetPreload(preload_high, preload); |
603 } | 603 } |
604 } | 604 } |
605 | 605 |
606 } // namespace media | 606 } // namespace media |
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