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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #include "base/message_loop.h" | |
6 #include "media/base/filter_host.h" | |
7 #include "media/filters/ffmpeg_demuxer.h" | |
8 #include "media/filters/ffmpeg_demuxer_factory.h" | |
9 | |
10 namespace media { | |
11 | |
12 FFmpegDemuxerFactory::FFmpegDemuxerFactory( | |
13 DataSourceFactory* data_source_factory, | |
14 MessageLoop* loop, | |
15 FilterHost* host) | |
16 : data_source_factory_(data_source_factory), loop_(loop), host_(host) {} | |
17 | |
18 FFmpegDemuxerFactory::~FFmpegDemuxerFactory() {} | |
19 | |
20 // This and the next class are one-offs whose raison d'etre is the lack of | |
21 // currying functionality in base/callback_old.h's machinery. Once media/ | |
22 // PipelineStatusCallback and {DataSource,Demuxer}Factory::BuildCallback are | |
23 // migrated to the new base/callback.h machinery these should be removed and | |
24 // replaced with currying calls to base::Bind. | |
25 class DemuxerCallbackAsPipelineStatusCallback : public PipelineStatusCallback { | |
26 public: | |
27 DemuxerCallbackAsPipelineStatusCallback( | |
28 DemuxerFactory::BuildCallback* cb, | |
29 Demuxer* demuxer) | |
30 : cb_(cb), demuxer_(demuxer) { | |
31 DCHECK(cb_ && demuxer_); | |
32 } | |
33 | |
34 virtual ~DemuxerCallbackAsPipelineStatusCallback() {} | |
35 | |
36 virtual void RunWithParams(const Tuple1<PipelineError>& params) { | |
37 DemuxerFactory::BuildCallback* cb = cb_; | |
38 scoped_refptr<Demuxer> demuxer = demuxer_; | |
39 cb_ = NULL; | |
40 demuxer_ = NULL; | |
41 cb->Run(params.a, demuxer); | |
42 } | |
43 | |
44 private: | |
45 DemuxerFactory::BuildCallback* cb_; | |
acolwell GONE FROM CHROMIUM
2011/03/08 21:48:09
Shouldn't this be a scoped_ptr?
Ami GONE FROM CHROMIUM
2011/03/08 22:44:48
Done.
| |
46 scoped_refptr<Demuxer> demuxer_; | |
47 | |
48 DISALLOW_IMPLICIT_CONSTRUCTORS(DemuxerCallbackAsPipelineStatusCallback); | |
49 }; | |
50 | |
51 // See comments on DemuxerCallbackAsPipelineStatusCallback above. | |
52 class DemuxerCallbackAsDataSourceCallback : | |
53 public DataSourceFactory::BuildCallback { | |
54 public: | |
55 DemuxerCallbackAsDataSourceCallback(DemuxerFactory::BuildCallback* cb, | |
56 MessageLoop* loop, | |
57 FilterHost* host) | |
58 : cb_(cb), loop_(loop), host_(host) { | |
59 DCHECK(cb_ && loop_ && host_); | |
60 } | |
61 | |
62 virtual ~DemuxerCallbackAsDataSourceCallback() {} | |
63 | |
64 virtual void RunWithParams(const Tuple2<PipelineError, DataSource*>& params) { | |
65 DemuxerFactory::BuildCallback* cb = cb_; | |
66 cb_ = NULL; | |
67 PipelineError status = params.a; | |
68 DataSource* data_source = params.b; | |
69 if (status != PIPELINE_OK) { | |
70 cb->Run(status, static_cast<Demuxer*>(NULL)); | |
71 return; | |
72 } | |
73 DCHECK(data_source); | |
74 scoped_refptr<FFmpegDemuxer> demuxer = new FFmpegDemuxer(loop_); | |
75 demuxer->Initialize( | |
76 data_source, | |
77 new DemuxerCallbackAsPipelineStatusCallback(cb, demuxer)); | |
78 } | |
79 | |
80 private: | |
81 DemuxerFactory::BuildCallback* cb_; | |
82 MessageLoop* loop_; | |
83 FilterHost* host_; | |
acolwell GONE FROM CHROMIUM
2011/03/08 21:48:09
Is this needed? It doesn't look like any of the co
Ami GONE FROM CHROMIUM
2011/03/08 22:44:48
Not anymore.
| |
84 | |
85 DISALLOW_IMPLICIT_CONSTRUCTORS(DemuxerCallbackAsDataSourceCallback); | |
86 }; | |
87 | |
88 void FFmpegDemuxerFactory::Build(const std::string& url, BuildCallback* cb) { | |
89 data_source_factory_->Build( | |
90 url, new DemuxerCallbackAsDataSourceCallback(cb, loop_, host_)); | |
91 } | |
92 | |
93 DemuxerFactory* FFmpegDemuxerFactory::Clone() const { | |
94 return new FFmpegDemuxerFactory(data_source_factory_->Clone(), loop_, host_); | |
95 } | |
96 | |
97 } // namespace media | |
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