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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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/filters/decrypting_video_decoder.h" | 5 #include "media/filters/decrypting_video_decoder.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/callback_helpers.h" | 8 #include "base/callback_helpers.h" |
9 #include "base/debug/trace_event.h" | 9 #include "base/debug/trace_event.h" |
10 #include "base/location.h" | 10 #include "base/location.h" |
| 11 #include "base/logging.h" |
11 #include "base/message_loop_proxy.h" | 12 #include "base/message_loop_proxy.h" |
12 #include "media/base/bind_to_loop.h" | 13 #include "media/base/bind_to_loop.h" |
13 #include "media/base/decoder_buffer.h" | 14 #include "media/base/decoder_buffer.h" |
14 #include "media/base/decryptor.h" | 15 #include "media/base/decryptor.h" |
15 #include "media/base/demuxer_stream.h" | 16 #include "media/base/demuxer_stream.h" |
16 #include "media/base/pipeline.h" | 17 #include "media/base/pipeline.h" |
17 #include "media/base/video_decoder_config.h" | 18 #include "media/base/video_decoder_config.h" |
18 #include "media/base/video_frame.h" | 19 #include "media/base/video_frame.h" |
19 | 20 |
20 namespace media { | 21 namespace media { |
21 | 22 |
22 #define BIND_TO_LOOP(function) \ | 23 #define BIND_TO_LOOP(function) \ |
23 media::BindToLoop(message_loop_, base::Bind(function, this)) | 24 media::BindToLoop(message_loop_, base::Bind(function, this)) |
24 | 25 |
25 DecryptingVideoDecoder::DecryptingVideoDecoder( | 26 DecryptingVideoDecoder::DecryptingVideoDecoder( |
26 const MessageLoopFactoryCB& message_loop_factory_cb, | 27 const MessageLoopFactoryCB& message_loop_factory_cb, |
27 const RequestDecryptorNotificationCB& request_decryptor_notification_cb) | 28 const RequestDecryptorNotificationCB& request_decryptor_notification_cb) |
28 : message_loop_factory_cb_(message_loop_factory_cb), | 29 : message_loop_factory_cb_(message_loop_factory_cb), |
29 state_(kUninitialized), | 30 state_(kUninitialized), |
30 request_decryptor_notification_cb_(request_decryptor_notification_cb), | 31 request_decryptor_notification_cb_(request_decryptor_notification_cb), |
31 decryptor_(NULL), | 32 decryptor_(NULL), |
32 key_added_while_pending_decode_(false), | 33 key_added_while_decode_pending_(false), |
33 trace_id_(0) { | 34 trace_id_(0) { |
34 } | 35 } |
35 | 36 |
36 void DecryptingVideoDecoder::Initialize( | 37 void DecryptingVideoDecoder::Initialize( |
37 const scoped_refptr<DemuxerStream>& stream, | 38 const scoped_refptr<DemuxerStream>& stream, |
38 const PipelineStatusCB& status_cb, | 39 const PipelineStatusCB& status_cb, |
39 const StatisticsCB& statistics_cb) { | 40 const StatisticsCB& statistics_cb) { |
40 DCHECK(!message_loop_); | 41 DCHECK(!message_loop_); |
41 message_loop_ = base::ResetAndReturn(&message_loop_factory_cb_).Run(); | 42 message_loop_ = base::ResetAndReturn(&message_loop_factory_cb_).Run(); |
42 message_loop_->PostTask(FROM_HERE, base::Bind( | 43 message_loop_->PostTask(FROM_HERE, base::Bind( |
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325 TRACE_EVENT_ASYNC_END0( | 326 TRACE_EVENT_ASYNC_END0( |
326 "eme", "DecryptingVideoDecoder::DecodePendingBuffer", trace_id_); | 327 "eme", "DecryptingVideoDecoder::DecodePendingBuffer", trace_id_); |
327 | 328 |
328 if (state_ == kStopped) | 329 if (state_ == kStopped) |
329 return; | 330 return; |
330 | 331 |
331 DCHECK_EQ(state_, kPendingDecode) << state_; | 332 DCHECK_EQ(state_, kPendingDecode) << state_; |
332 DCHECK(!read_cb_.is_null()); | 333 DCHECK(!read_cb_.is_null()); |
333 DCHECK(pending_buffer_to_decode_); | 334 DCHECK(pending_buffer_to_decode_); |
334 | 335 |
335 bool need_to_try_again_if_nokey_is_returned = key_added_while_pending_decode_; | 336 bool need_to_try_again_if_nokey_is_returned = key_added_while_decode_pending_; |
336 key_added_while_pending_decode_ = false; | 337 key_added_while_decode_pending_ = false; |
337 | 338 |
338 scoped_refptr<DecoderBuffer> scoped_pending_buffer_to_decode = | 339 scoped_refptr<DecoderBuffer> scoped_pending_buffer_to_decode = |
339 pending_buffer_to_decode_; | 340 pending_buffer_to_decode_; |
340 pending_buffer_to_decode_ = NULL; | 341 pending_buffer_to_decode_ = NULL; |
341 | 342 |
342 if (!reset_cb_.is_null()) { | 343 if (!reset_cb_.is_null()) { |
343 base::ResetAndReturn(&read_cb_).Run(kOk, NULL); | 344 base::ResetAndReturn(&read_cb_).Run(kOk, NULL); |
344 DoReset(); | 345 DoReset(); |
345 return; | 346 return; |
346 } | 347 } |
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396 DCHECK(!frame->IsEndOfStream()); | 397 DCHECK(!frame->IsEndOfStream()); |
397 state_ = kIdle; | 398 state_ = kIdle; |
398 base::ResetAndReturn(&read_cb_).Run(kOk, frame); | 399 base::ResetAndReturn(&read_cb_).Run(kOk, frame); |
399 } | 400 } |
400 | 401 |
401 void DecryptingVideoDecoder::OnKeyAdded() { | 402 void DecryptingVideoDecoder::OnKeyAdded() { |
402 DVLOG(2) << "OnKeyAdded()"; | 403 DVLOG(2) << "OnKeyAdded()"; |
403 DCHECK(message_loop_->BelongsToCurrentThread()); | 404 DCHECK(message_loop_->BelongsToCurrentThread()); |
404 | 405 |
405 if (state_ == kPendingDecode) { | 406 if (state_ == kPendingDecode) { |
406 key_added_while_pending_decode_ = true; | 407 key_added_while_decode_pending_ = true; |
407 return; | 408 return; |
408 } | 409 } |
409 | 410 |
410 if (state_ == kWaitingForKey) { | 411 if (state_ == kWaitingForKey) { |
411 state_ = kPendingDecode; | 412 state_ = kPendingDecode; |
412 DecodePendingBuffer(); | 413 DecodePendingBuffer(); |
413 } | 414 } |
414 } | 415 } |
415 | 416 |
416 void DecryptingVideoDecoder::DoReset() { | 417 void DecryptingVideoDecoder::DoReset() { |
417 DCHECK(init_cb_.is_null()); | 418 DCHECK(init_cb_.is_null()); |
418 DCHECK(read_cb_.is_null()); | 419 DCHECK(read_cb_.is_null()); |
419 state_ = kIdle; | 420 state_ = kIdle; |
420 base::ResetAndReturn(&reset_cb_).Run(); | 421 base::ResetAndReturn(&reset_cb_).Run(); |
421 } | 422 } |
422 | 423 |
423 } // namespace media | 424 } // namespace media |
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