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 3 // found in the LICENSE file. 4 5 #ifndef MEDIA_BASE_ANDROID_AUDIO_DECODER_JOB_H_ 6 #define MEDIA_BASE_ANDROID_AUDIO_DECODER_JOB_H_ 7 8 #include <jni.h> 9 10 #include "media/base/android/media_decoder_job.h" 11 12 namespace media { 13 14 class AudioCodecBridge; 15 16 // Class for managing audio decoding jobs. 17 class AudioDecoderJob : public MediaDecoderJob { 18 public: 19 virtual ~AudioDecoderJob(); 20 21 // Creates a new AudioDecoderJob instance for decoding audio. 22 // |audio_codec| - The audio format the object needs to decode. 23 // |sample_rate| - The sample rate of the decoded output. 24 // |channel_count| - The number of channels in the decoded output. 25 // |extra_data|, |extra_data_size| - Extra data buffer needed for initializing 26 // the decoder. 27 // |media_crypto| - Handle to a Java object that handles the encryption for 28 // the audio data. 29 // |request_data_cb| - Callback used to request more data for the decoder. 30 static AudioDecoderJob* Create( 31 const AudioCodec audio_codec, int sample_rate, int channel_count, 32 const uint8* extra_data, size_t extra_data_size, jobject media_crypto, 33 const base::Closure& request_data_cb); 34 35 void SetVolume(double volume); 36 37 private: 38 AudioDecoderJob(scoped_ptr<AudioCodecBridge> audio_decoder_bridge, 39 const base::Closure& request_data_cb); 40 41 // MediaDecoderJob implementation. 42 virtual void ReleaseOutputBuffer( 43 int output_buffer_index, 44 size_t size, 45 bool render_output, 46 const ReleaseOutputCompletionCallback& callback) OVERRIDE; 47 48 virtual bool ComputeTimeToRender() const OVERRIDE; 49 50 scoped_ptr<AudioCodecBridge> audio_codec_bridge_; 51 }; 52 53 } // namespace media 54 55 #endif // MEDIA_BASE_ANDROID_AUDIO_DECODER_JOB_H_ 56
