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Side by Side Diff: media/cast/audio_receiver/audio_decoder.cc

Issue 288103002: [Cast] EncodedAudioFrame+EncodedVideoFrame+reference_time --> EncodedFrame (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: rebase Created 6 years, 7 months ago
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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/cast/audio_receiver/audio_decoder.h" 5 #include "media/cast/audio_receiver/audio_decoder.h"
6 6
7 #include "base/bind.h" 7 #include "base/bind.h"
8 #include "base/bind_helpers.h" 8 #include "base/bind_helpers.h"
9 #include "base/location.h" 9 #include "base/location.h"
10 #include "base/logging.h" 10 #include "base/logging.h"
11 #include "base/memory/ref_counted.h" 11 #include "base/memory/ref_counted.h"
12 #include "base/stl_util.h"
13 #include "base/sys_byteorder.h" 12 #include "base/sys_byteorder.h"
14 #include "media/cast/cast_defines.h" 13 #include "media/cast/cast_defines.h"
15 #include "third_party/opus/src/include/opus.h" 14 #include "third_party/opus/src/include/opus.h"
16 15
17 namespace media { 16 namespace media {
18 namespace cast { 17 namespace cast {
19 18
20 // Base class that handles the common problem of detecting dropped frames, and 19 // Base class that handles the common problem of detecting dropped frames, and
21 // then invoking the Decode() method implemented by the subclasses to convert 20 // then invoking the Decode() method implemented by the subclasses to convert
22 // the encoded payload data into usable audio data. 21 // the encoded payload data into usable audio data.
(...skipping 10 matching lines...) Expand all
33 cast_initialization_status_(STATUS_AUDIO_UNINITIALIZED), 32 cast_initialization_status_(STATUS_AUDIO_UNINITIALIZED),
34 seen_first_frame_(false) { 33 seen_first_frame_(false) {
35 if (num_channels_ <= 0 || sampling_rate <= 0 || sampling_rate % 100 != 0) 34 if (num_channels_ <= 0 || sampling_rate <= 0 || sampling_rate % 100 != 0)
36 cast_initialization_status_ = STATUS_INVALID_AUDIO_CONFIGURATION; 35 cast_initialization_status_ = STATUS_INVALID_AUDIO_CONFIGURATION;
37 } 36 }
38 37
39 CastInitializationStatus InitializationResult() const { 38 CastInitializationStatus InitializationResult() const {
40 return cast_initialization_status_; 39 return cast_initialization_status_;
41 } 40 }
42 41
43 void DecodeFrame(scoped_ptr<transport::EncodedAudioFrame> encoded_frame, 42 void DecodeFrame(scoped_ptr<transport::EncodedFrame> encoded_frame,
44 const DecodeFrameCallback& callback) { 43 const DecodeFrameCallback& callback) {
45 DCHECK_EQ(cast_initialization_status_, STATUS_AUDIO_INITIALIZED); 44 DCHECK_EQ(cast_initialization_status_, STATUS_AUDIO_INITIALIZED);
46 45
47 scoped_ptr<AudioBus> decoded_audio;
48 if (encoded_frame->codec != codec_) {
49 NOTREACHED();
50 cast_environment_->PostTask(CastEnvironment::MAIN,
51 FROM_HERE,
52 base::Bind(callback,
53 base::Passed(&decoded_audio),
54 false));
55 }
56
57 COMPILE_ASSERT(sizeof(encoded_frame->frame_id) == sizeof(last_frame_id_), 46 COMPILE_ASSERT(sizeof(encoded_frame->frame_id) == sizeof(last_frame_id_),
58 size_of_frame_id_types_do_not_match); 47 size_of_frame_id_types_do_not_match);
59 bool is_continuous = true; 48 bool is_continuous = true;
60 if (seen_first_frame_) { 49 if (seen_first_frame_) {
61 const uint32 frames_ahead = encoded_frame->frame_id - last_frame_id_; 50 const uint32 frames_ahead = encoded_frame->frame_id - last_frame_id_;
62 if (frames_ahead > 1) { 51 if (frames_ahead > 1) {
63 RecoverBecauseFramesWereDropped(); 52 RecoverBecauseFramesWereDropped();
64 is_continuous = false; 53 is_continuous = false;
65 } 54 }
66 } else { 55 } else {
67 seen_first_frame_ = true; 56 seen_first_frame_ = true;
68 } 57 }
69 last_frame_id_ = encoded_frame->frame_id; 58 last_frame_id_ = encoded_frame->frame_id;
70 59
71 decoded_audio = Decode( 60 scoped_ptr<AudioBus> decoded_audio = Decode(
72 reinterpret_cast<uint8*>(string_as_array(&encoded_frame->data)), 61 encoded_frame->mutable_bytes(),
73 static_cast<int>(encoded_frame->data.size())); 62 static_cast<int>(encoded_frame->data.size()));
74 cast_environment_->PostTask(CastEnvironment::MAIN, 63 cast_environment_->PostTask(CastEnvironment::MAIN,
75 FROM_HERE, 64 FROM_HERE,
76 base::Bind(callback, 65 base::Bind(callback,
77 base::Passed(&decoded_audio), 66 base::Passed(&decoded_audio),
78 is_continuous)); 67 is_continuous));
79 } 68 }
80 69
81 protected: 70 protected:
82 friend class base::RefCountedThreadSafe<ImplBase>; 71 friend class base::RefCountedThreadSafe<ImplBase>;
(...skipping 149 matching lines...) Expand 10 before | Expand all | Expand 10 after
232 221
233 AudioDecoder::~AudioDecoder() {} 222 AudioDecoder::~AudioDecoder() {}
234 223
235 CastInitializationStatus AudioDecoder::InitializationResult() const { 224 CastInitializationStatus AudioDecoder::InitializationResult() const {
236 if (impl_) 225 if (impl_)
237 return impl_->InitializationResult(); 226 return impl_->InitializationResult();
238 return STATUS_UNSUPPORTED_AUDIO_CODEC; 227 return STATUS_UNSUPPORTED_AUDIO_CODEC;
239 } 228 }
240 229
241 void AudioDecoder::DecodeFrame( 230 void AudioDecoder::DecodeFrame(
242 scoped_ptr<transport::EncodedAudioFrame> encoded_frame, 231 scoped_ptr<transport::EncodedFrame> encoded_frame,
243 const DecodeFrameCallback& callback) { 232 const DecodeFrameCallback& callback) {
244 DCHECK(encoded_frame.get()); 233 DCHECK(encoded_frame.get());
245 DCHECK(!callback.is_null()); 234 DCHECK(!callback.is_null());
246 if (!impl_ || impl_->InitializationResult() != STATUS_AUDIO_INITIALIZED) { 235 if (!impl_ || impl_->InitializationResult() != STATUS_AUDIO_INITIALIZED) {
247 callback.Run(make_scoped_ptr<AudioBus>(NULL), false); 236 callback.Run(make_scoped_ptr<AudioBus>(NULL), false);
248 return; 237 return;
249 } 238 }
250 cast_environment_->PostTask(CastEnvironment::AUDIO, 239 cast_environment_->PostTask(CastEnvironment::AUDIO,
251 FROM_HERE, 240 FROM_HERE,
252 base::Bind(&AudioDecoder::ImplBase::DecodeFrame, 241 base::Bind(&AudioDecoder::ImplBase::DecodeFrame,
253 impl_, 242 impl_,
254 base::Passed(&encoded_frame), 243 base::Passed(&encoded_frame),
255 callback)); 244 callback));
256 } 245 }
257 246
258 } // namespace cast 247 } // namespace cast
259 } // namespace media 248 } // namespace media
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