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| 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 #include <stddef.h> | |
| 10 #include <stdint.h> | |
| 11 #include <memory> | |
| 12 #include <vector> | |
| 13 | |
| 14 #include "base/callback.h" | |
| 15 #include "base/macros.h" | |
| 16 #include "media/base/android/media_decoder_job.h" | |
| 17 | |
| 18 namespace media { | |
| 19 | |
| 20 class AudioCodecBridge; | |
| 21 class AudioTimestampHelper; | |
| 22 | |
| 23 // Class for managing audio decoding jobs. | |
| 24 class AudioDecoderJob : public MediaDecoderJob { | |
| 25 public: | |
| 26 // Creates a new AudioDecoderJob instance for decoding audio. | |
| 27 // |request_data_cb| - Callback used to request more data for the decoder. | |
| 28 // |on_demuxer_config_changed_cb| - Callback used to inform the caller that | |
| 29 // demuxer config has changed. | |
| 30 AudioDecoderJob(const base::Closure& request_data_cb, | |
| 31 const base::Closure& on_demuxer_config_changed_cb); | |
| 32 ~AudioDecoderJob() override; | |
| 33 | |
| 34 // MediaDecoderJob implementation. | |
| 35 bool HasStream() const override; | |
| 36 void Flush() override; | |
| 37 void SetDemuxerConfigs(const DemuxerConfigs& configs) override; | |
| 38 | |
| 39 // Sets the volume of the audio output. | |
| 40 void SetVolume(double volume); | |
| 41 | |
| 42 // Sets the base timestamp for |audio_timestamp_helper_|. | |
| 43 void SetBaseTimestamp(base::TimeDelta base_timestamp); | |
| 44 | |
| 45 private: | |
| 46 // MediaDecoderJob implementation. | |
| 47 void ReleaseOutputBuffer(int output_buffer_index, | |
| 48 size_t offset, | |
| 49 size_t size, | |
| 50 bool render_output, | |
| 51 bool is_late_frame, | |
| 52 base::TimeDelta current_presentation_timestamp, | |
| 53 MediaCodecStatus status, | |
| 54 const DecoderCallback& callback) override; | |
| 55 bool ComputeTimeToRender() const override; | |
| 56 bool AreDemuxerConfigsChanged(const DemuxerConfigs& configs) const override; | |
| 57 MediaDecoderJobStatus CreateMediaCodecBridgeInternal() override; | |
| 58 bool OnOutputFormatChanged() override; | |
| 59 | |
| 60 // Helper method to set the audio output volume. | |
| 61 void SetVolumeInternal(); | |
| 62 | |
| 63 void ResetTimestampHelper(); | |
| 64 | |
| 65 // Audio configs from the demuxer. | |
| 66 AudioCodec audio_codec_; | |
| 67 int config_num_channels_; | |
| 68 int config_sampling_rate_; | |
| 69 std::vector<uint8_t> audio_extra_data_; | |
| 70 int64_t audio_codec_delay_ns_; | |
| 71 int64_t audio_seek_preroll_ns_; | |
| 72 double volume_; | |
| 73 | |
| 74 // Audio output sample rate. | |
| 75 int output_sampling_rate_; | |
| 76 | |
| 77 // Number of output audio channels. | |
| 78 int output_num_channels_; | |
| 79 | |
| 80 // Frame count to sync with audio codec output. | |
| 81 int64_t frame_count_; | |
| 82 | |
| 83 // Base timestamp for the |audio_timestamp_helper_|. | |
| 84 base::TimeDelta base_timestamp_; | |
| 85 | |
| 86 // Object to calculate the current audio timestamp for A/V sync. | |
| 87 std::unique_ptr<AudioTimestampHelper> audio_timestamp_helper_; | |
| 88 | |
| 89 // The time limit for the next frame to avoid underrun. | |
| 90 base::TimeTicks next_frame_time_limit_; | |
| 91 | |
| 92 DISALLOW_COPY_AND_ASSIGN(AudioDecoderJob); | |
| 93 }; | |
| 94 | |
| 95 } // namespace media | |
| 96 | |
| 97 #endif // MEDIA_BASE_ANDROID_AUDIO_DECODER_JOB_H_ | |
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Issue 2283493003:
Delete browser MSE implementation. (Closed)
