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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef WEBKIT_RENDERER_MEDIA_CRYPTO_PPAPI_FFMPEG_CDM_AUDIO_DECODER_H_ | 5 #ifndef MEDIA_CDM_PPAPI_FFMPEG_CDM_AUDIO_DECODER_H_ |
| 6 #define WEBKIT_RENDERER_MEDIA_CRYPTO_PPAPI_FFMPEG_CDM_AUDIO_DECODER_H_ | 6 #define MEDIA_CDM_PPAPI_FFMPEG_CDM_AUDIO_DECODER_H_ |
| 7 | 7 |
| 8 #include <vector> | 8 #include <vector> |
| 9 | 9 |
| 10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
| 11 #include "base/compiler_specific.h" | 11 #include "base/compiler_specific.h" |
| 12 #include "base/memory/scoped_ptr.h" | 12 #include "base/memory/scoped_ptr.h" |
| 13 #include "base/time/time.h" | 13 #include "base/time/time.h" |
| 14 #include "webkit/renderer/media/crypto/ppapi/cdm/content_decryption_module.h" | 14 #include "media/cdm/ppapi/api/content_decryption_module.h" |
| 15 | 15 |
| 16 struct AVCodecContext; | 16 struct AVCodecContext; |
| 17 struct AVFrame; | 17 struct AVFrame; |
| 18 | 18 |
| 19 namespace media { | 19 namespace media { |
| 20 class AudioBus; | 20 class AudioBus; |
| 21 class AudioTimestampHelper; | 21 class AudioTimestampHelper; |
| 22 } | 22 } |
| 23 | 23 |
| 24 namespace webkit_media { | 24 namespace media { |
| 25 | 25 |
| 26 // TODO(xhwang): This class is partially cloned from media::FFmpegAudioDecoder. | 26 // TODO(xhwang): This class is partially cloned from FFmpegAudioDecoder. When |
| 27 // When media::FFmpegAudioDecoder is updated, it's a pain to keep this class | 27 // FFmpegAudioDecoder is updated, it's a pain to keep this class in sync with |
| 28 // in sync with media::FFmpegAudioDecoder. We need a long term sustainable | 28 // FFmpegAudioDecoder. We need a long term sustainable solution for this. See |
| 29 // solution for this. See http://crbug.com/169203 | 29 // http://crbug.com/169203 |
| 30 class FFmpegCdmAudioDecoder { | 30 class FFmpegCdmAudioDecoder { |
| 31 public: | 31 public: |
| 32 explicit FFmpegCdmAudioDecoder(cdm::Host* host); | 32 explicit FFmpegCdmAudioDecoder(cdm::Host* host); |
| 33 ~FFmpegCdmAudioDecoder(); | 33 ~FFmpegCdmAudioDecoder(); |
| 34 bool Initialize(const cdm::AudioDecoderConfig& config); | 34 bool Initialize(const cdm::AudioDecoderConfig& config); |
| 35 void Deinitialize(); | 35 void Deinitialize(); |
| 36 void Reset(); | 36 void Reset(); |
| 37 | 37 |
| 38 // Returns true when |config| is a valid audio decoder configuration. | 38 // Returns true when |config| is a valid audio decoder configuration. |
| 39 static bool IsValidConfig(const cdm::AudioDecoderConfig& config); | 39 static bool IsValidConfig(const cdm::AudioDecoderConfig& config); |
| (...skipping 28 matching lines...) Expand all Loading... |
| 68 | 68 |
| 69 // Audio format. | 69 // Audio format. |
| 70 int bits_per_channel_; | 70 int bits_per_channel_; |
| 71 int samples_per_second_; | 71 int samples_per_second_; |
| 72 int channels_; | 72 int channels_; |
| 73 | 73 |
| 74 // AVSampleFormat initially requested; not Chrome's SampleFormat. | 74 // AVSampleFormat initially requested; not Chrome's SampleFormat. |
| 75 int av_sample_format_; | 75 int av_sample_format_; |
| 76 | 76 |
| 77 // Used for computing output timestamps. | 77 // Used for computing output timestamps. |
| 78 scoped_ptr<media::AudioTimestampHelper> output_timestamp_helper_; | 78 scoped_ptr<AudioTimestampHelper> output_timestamp_helper_; |
| 79 int bytes_per_frame_; | 79 int bytes_per_frame_; |
| 80 base::TimeDelta last_input_timestamp_; | 80 base::TimeDelta last_input_timestamp_; |
| 81 | 81 |
| 82 // We may need to convert the audio data coming out of FFmpeg from planar | 82 // We may need to convert the audio data coming out of FFmpeg from planar |
| 83 // float to integer. | 83 // float to integer. |
| 84 scoped_ptr<media::AudioBus> converter_bus_; | 84 scoped_ptr<AudioBus> converter_bus_; |
| 85 | 85 |
| 86 // Number of output sample bytes to drop before generating output buffers. | 86 // Number of output sample bytes to drop before generating output buffers. |
| 87 // This is required for handling negative timestamps when decoding Vorbis | 87 // This is required for handling negative timestamps when decoding Vorbis |
| 88 // audio, for example. | 88 // audio, for example. |
| 89 int output_bytes_to_drop_; | 89 int output_bytes_to_drop_; |
| 90 | 90 |
| 91 typedef std::vector<uint8_t> SerializedAudioFrames; | 91 typedef std::vector<uint8_t> SerializedAudioFrames; |
| 92 SerializedAudioFrames serialized_audio_frames_; | 92 SerializedAudioFrames serialized_audio_frames_; |
| 93 | 93 |
| 94 DISALLOW_COPY_AND_ASSIGN(FFmpegCdmAudioDecoder); | 94 DISALLOW_COPY_AND_ASSIGN(FFmpegCdmAudioDecoder); |
| 95 }; | 95 }; |
| 96 | 96 |
| 97 } // namespace webkit_media | 97 } // namespace media |
| 98 | 98 |
| 99 #endif // WEBKIT_RENDERER_MEDIA_CRYPTO_PPAPI_FFMPEG_CDM_AUDIO_DECODER_H_ | 99 #endif // MEDIA_CDM_PPAPI_FFMPEG_CDM_AUDIO_DECODER_H_ |
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