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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 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 // A base class that provides the plumbing for a decoder filters. | 5 // A base class that provides the plumbing for a decoder filters. |
6 | 6 |
7 #ifndef MEDIA_FILTERS_DECODER_BASE_H_ | 7 #ifndef MEDIA_FILTERS_DECODER_BASE_H_ |
8 #define MEDIA_FILTERS_DECODER_BASE_H_ | 8 #define MEDIA_FILTERS_DECODER_BASE_H_ |
9 | 9 |
10 #include <deque> | 10 #include <deque> |
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23 | 23 |
24 // In this class, we over-specify method lookup via this-> to avoid unexpected | 24 // In this class, we over-specify method lookup via this-> to avoid unexpected |
25 // name resolution issues due to the two-phase lookup needed for dependent | 25 // name resolution issues due to the two-phase lookup needed for dependent |
26 // name resolution in templates. | 26 // name resolution in templates. |
27 template <class Decoder, class Output> | 27 template <class Decoder, class Output> |
28 class DecoderBase : public Decoder { | 28 class DecoderBase : public Decoder { |
29 public: | 29 public: |
30 | 30 |
31 // MediaFilter implementation. | 31 // MediaFilter implementation. |
32 virtual void Stop(FilterCallback* callback) { | 32 virtual void Stop(FilterCallback* callback) { |
33 this->message_loop()->PostTask( | 33 this->message_loop()->PostTask(FROM_HERE, |
34 FROM_HERE, | |
35 NewRunnableMethod(this, &DecoderBase::StopTask, callback)); | 34 NewRunnableMethod(this, &DecoderBase::StopTask, callback)); |
36 } | 35 } |
37 | 36 |
38 virtual void Seek(base::TimeDelta time, | 37 virtual void Seek(base::TimeDelta time, |
39 FilterCallback* callback) { | 38 FilterCallback* callback) { |
40 this->message_loop()->PostTask( | 39 this->message_loop()->PostTask(FROM_HERE, |
41 FROM_HERE, | |
42 NewRunnableMethod(this, &DecoderBase::SeekTask, time, callback)); | 40 NewRunnableMethod(this, &DecoderBase::SeekTask, time, callback)); |
43 } | 41 } |
44 | 42 |
45 // Decoder implementation. | 43 // Decoder implementation. |
46 virtual void Initialize(DemuxerStream* demuxer_stream, | 44 virtual void Initialize(DemuxerStream* demuxer_stream, |
47 FilterCallback* callback) { | 45 FilterCallback* callback) { |
48 this->message_loop()->PostTask( | 46 this->message_loop()->PostTask(FROM_HERE, |
49 FROM_HERE, | 47 NewRunnableMethod(this, &DecoderBase::InitializeTask, demuxer_stream, |
50 NewRunnableMethod(this, | |
51 &DecoderBase::InitializeTask, | |
52 make_scoped_refptr(demuxer_stream), | |
53 callback)); | 48 callback)); |
54 } | 49 } |
55 | 50 |
56 virtual const MediaFormat& media_format() { return media_format_; } | 51 virtual const MediaFormat& media_format() { return media_format_; } |
57 | 52 |
58 // Audio decoder. | 53 // Audio decoder. |
59 // Note that this class is only used by the audio decoder, this will | 54 // Note that this class is only used by the audio decoder, this will |
60 // eventually be merged into FFmpegAudioDecoder. | 55 // eventually be merged into FFmpegAudioDecoder. |
61 virtual void ProduceAudioSamples(scoped_refptr<Output> output) { | 56 virtual void ProduceAudioSamples(scoped_refptr<Output> output) { |
62 this->message_loop()->PostTask(FROM_HERE, | 57 this->message_loop()->PostTask(FROM_HERE, |
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322 kStopped, | 317 kStopped, |
323 }; | 318 }; |
324 State state_; | 319 State state_; |
325 | 320 |
326 DISALLOW_COPY_AND_ASSIGN(DecoderBase); | 321 DISALLOW_COPY_AND_ASSIGN(DecoderBase); |
327 }; | 322 }; |
328 | 323 |
329 } // namespace media | 324 } // namespace media |
330 | 325 |
331 #endif // MEDIA_FILTERS_DECODER_BASE_H_ | 326 #endif // MEDIA_FILTERS_DECODER_BASE_H_ |
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