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| 1 // Copyright 2015 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_MEDIA_CODEC_DECODER_H_ | |
| 6 #define MEDIA_BASE_ANDROID_AUDIO_MEDIA_CODEC_DECODER_H_ | |
| 7 | |
| 8 #include <stddef.h> | |
| 9 #include <stdint.h> | |
| 10 #include <memory> | |
| 11 | |
| 12 #include "base/macros.h" | |
| 13 #include "media/base/android/media_codec_decoder.h" | |
| 14 | |
| 15 namespace media { | |
| 16 | |
| 17 class AudioTimestampHelper; | |
| 18 | |
| 19 // Audio decoder for MediaCodecPlayer | |
| 20 class AudioMediaCodecDecoder : public MediaCodecDecoder { | |
| 21 public: | |
| 22 // For parameters see media_codec_decoder.h | |
| 23 // update_current_time_cb: callback that reports current playback time. | |
| 24 // Called for each rendered frame. | |
| 25 AudioMediaCodecDecoder( | |
| 26 const scoped_refptr<base::SingleThreadTaskRunner>& media_runner, | |
| 27 FrameStatistics* frame_statistics, | |
| 28 const base::Closure& request_data_cb, | |
| 29 const base::Closure& starvation_cb, | |
| 30 const base::Closure& decoder_drained_cb, | |
| 31 const base::Closure& stop_done_cb, | |
| 32 const base::Closure& waiting_for_decryption_key_cb, | |
| 33 const base::Closure& error_cb, | |
| 34 const SetTimeCallback& update_current_time_cb); | |
| 35 ~AudioMediaCodecDecoder() override; | |
| 36 | |
| 37 const char* class_name() const override; | |
| 38 | |
| 39 bool HasStream() const override; | |
| 40 void SetDemuxerConfigs(const DemuxerConfigs& configs) override; | |
| 41 bool IsContentEncrypted() const override; | |
| 42 void ReleaseDecoderResources() override; | |
| 43 void Flush() override; | |
| 44 | |
| 45 // Sets the volume of the audio output. | |
| 46 void SetVolume(double volume); | |
| 47 | |
| 48 // Sets the base timestamp for |audio_timestamp_helper_|. | |
| 49 void SetBaseTimestamp(base::TimeDelta base_timestamp); | |
| 50 | |
| 51 protected: | |
| 52 bool IsCodecReconfigureNeeded(const DemuxerConfigs& next) const override; | |
| 53 ConfigStatus ConfigureInternal(jobject media_crypto) override; | |
| 54 bool OnOutputFormatChanged() override; | |
| 55 bool Render(int buffer_index, | |
| 56 size_t offset, | |
| 57 size_t size, | |
| 58 RenderMode render_mode, | |
| 59 base::TimeDelta pts, | |
| 60 bool eos_encountered) override; | |
| 61 | |
| 62 private: | |
| 63 // A helper method to set the volume. | |
| 64 void SetVolumeInternal(); | |
| 65 | |
| 66 // Recreates |audio_timestamp_helper_|, called when sampling rate is changed. | |
| 67 void ResetTimestampHelper(); | |
| 68 | |
| 69 // Data. | |
| 70 | |
| 71 // Configuration received from demuxer | |
| 72 DemuxerConfigs configs_; | |
| 73 | |
| 74 // Requested volume | |
| 75 double volume_; | |
| 76 | |
| 77 // The sampling rate received from decoder. | |
| 78 int output_sampling_rate_; | |
| 79 | |
| 80 // The number of audio channels received from decoder. | |
| 81 int output_num_channels_; | |
| 82 | |
| 83 // Frame count to sync with audio codec output. | |
| 84 int64_t frame_count_; | |
| 85 | |
| 86 // Base timestamp for the |audio_timestamp_helper_|. | |
| 87 base::TimeDelta base_timestamp_; | |
| 88 | |
| 89 // Object to calculate the current audio timestamp for A/V sync. | |
| 90 std::unique_ptr<AudioTimestampHelper> audio_timestamp_helper_; | |
| 91 | |
| 92 // Reports current playback time to the callee. | |
| 93 SetTimeCallback update_current_time_cb_; | |
| 94 | |
| 95 // The time limit for the next frame to avoid underrun. | |
| 96 base::TimeTicks next_frame_time_limit_; | |
| 97 | |
| 98 DISALLOW_COPY_AND_ASSIGN(AudioMediaCodecDecoder); | |
| 99 }; | |
| 100 | |
| 101 } // namespace media | |
| 102 | |
| 103 #endif // MEDIA_BASE_ANDROID_AUDIO_MEDIA_CODEC_DECODER_H_ | |
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Chromium Code Reviews
Issue 2276343005:
Delete MediaCodecPlayer, it's time! (Closed)
