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| 1 // Copyright 2014 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 "media/mojo/services/mojo_demuxer_stream_adapter.h" |
| 6 |
| 7 #include "base/bind.h" |
| 8 #include "base/callback_helpers.h" |
| 9 #include "media/base/decoder_buffer.h" |
| 10 #include "media/mojo/services/media_type_converters.h" |
| 11 |
| 12 namespace media { |
| 13 |
| 14 MojoDemuxerStreamAdapter::MojoDemuxerStreamAdapter( |
| 15 mojo::DemuxerStreamPtr demuxer_stream, |
| 16 const base::Closure& stream_ready_cb) |
| 17 : demuxer_stream_(demuxer_stream.Pass()), |
| 18 stream_ready_cb_(stream_ready_cb), |
| 19 weak_factory_(this) { |
| 20 demuxer_stream_.set_client(this); |
| 21 } |
| 22 |
| 23 MojoDemuxerStreamAdapter::~MojoDemuxerStreamAdapter() { |
| 24 } |
| 25 |
| 26 void MojoDemuxerStreamAdapter::Read(const DemuxerStream::ReadCB& read_cb) { |
| 27 // We shouldn't be holding on to a previous callback if a new Read() came in. |
| 28 DCHECK(read_cb_.is_null()); |
| 29 read_cb_ = read_cb; |
| 30 demuxer_stream_->Read(base::Bind(&MojoDemuxerStreamAdapter::OnBufferReady, |
| 31 weak_factory_.GetWeakPtr())); |
| 32 } |
| 33 |
| 34 AudioDecoderConfig MojoDemuxerStreamAdapter::audio_decoder_config() { |
| 35 DCHECK(!config_queue_.empty()); |
| 36 return config_queue_.front(); |
| 37 } |
| 38 |
| 39 VideoDecoderConfig MojoDemuxerStreamAdapter::video_decoder_config() { |
| 40 NOTREACHED(); |
| 41 return VideoDecoderConfig(); |
| 42 } |
| 43 |
| 44 media::DemuxerStream::Type MojoDemuxerStreamAdapter::type() { |
| 45 return media::DemuxerStream::AUDIO; |
| 46 } |
| 47 |
| 48 void MojoDemuxerStreamAdapter::EnableBitstreamConverter() { |
| 49 NOTREACHED(); |
| 50 } |
| 51 |
| 52 bool MojoDemuxerStreamAdapter::SupportsConfigChanges() { |
| 53 return true; |
| 54 } |
| 55 |
| 56 VideoRotation MojoDemuxerStreamAdapter::video_rotation() { |
| 57 NOTIMPLEMENTED(); |
| 58 return VIDEO_ROTATION_0; |
| 59 } |
| 60 |
| 61 void MojoDemuxerStreamAdapter::OnStreamReady( |
| 62 mojo::ScopedDataPipeConsumerHandle pipe) { |
| 63 // TODO(tim): We don't support pipe streaming yet. |
| 64 DCHECK(!pipe.is_valid()); |
| 65 DCHECK(!config_queue_.empty()); |
| 66 stream_ready_cb_.Run(); |
| 67 } |
| 68 |
| 69 void MojoDemuxerStreamAdapter::OnAudioDecoderConfigChanged( |
| 70 mojo::AudioDecoderConfigPtr config) { |
| 71 config_queue_.push(config.To<media::AudioDecoderConfig>()); |
| 72 |
| 73 if (!read_cb_.is_null()) { |
| 74 read_cb_.Run(media::DemuxerStream::Status::kConfigChanged, NULL); |
| 75 read_cb_.Reset(); |
| 76 } |
| 77 } |
| 78 |
| 79 void MojoDemuxerStreamAdapter::OnBufferReady( |
| 80 mojo::DemuxerStream::Status status, |
| 81 mojo::MediaDecoderBufferPtr buffer) { |
| 82 DCHECK(!read_cb_.is_null()); |
| 83 DCHECK(!config_queue_.empty()); |
| 84 |
| 85 media::DemuxerStream::Status media_status( |
| 86 static_cast<media::DemuxerStream::Status>(status)); |
| 87 scoped_refptr<media::DecoderBuffer> media_buffer( |
| 88 buffer.To<scoped_refptr<media::DecoderBuffer> >()); |
| 89 |
| 90 if (status == mojo::DemuxerStream::STATUS_CONFIG_CHANGED) { |
| 91 DCHECK(!media_buffer.get()); |
| 92 config_queue_.pop(); |
| 93 |
| 94 // If the |config_queue_| is empty we need to wait for |
| 95 // OnAudioDecoderConfigChanged before invoking |read_cb|. |
| 96 if (config_queue_.empty()) |
| 97 return; |
| 98 } |
| 99 read_cb_.Run(media_status, media_buffer); |
| 100 read_cb_.Reset(); |
| 101 } |
| 102 |
| 103 } // namespace media |
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