| // Copyright 2017 The Cobalt Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef STARBOARD_SHARED_STARBOARD_PLAYER_DECODED_AUDIO_INTERNAL_H_ |
| #define STARBOARD_SHARED_STARBOARD_PLAYER_DECODED_AUDIO_INTERNAL_H_ |
| |
| #include <iostream> |
| |
| #include "starboard/common/ref_counted.h" |
| #include "starboard/common/scoped_ptr.h" |
| #include "starboard/media.h" |
| #include "starboard/shared/internal_only.h" |
| #include "starboard/shared/starboard/player/buffer_internal.h" |
| |
| namespace starboard { |
| namespace shared { |
| namespace starboard { |
| namespace player { |
| |
| // Decoded audio frames produced by an audio decoder. It can contain multiple |
| // frames with continuous timestamps. |
| class DecodedAudio : public RefCountedThreadSafe<DecodedAudio> { |
| public: |
| DecodedAudio(); // Signal an EOS. |
| // TODO(b/272837615): Remove `storage_type` support and always store data in |
| // interleaved. Refactor the places that store sample in planar to convert the |
| // samples to interleaved on creation. |
| DecodedAudio(int channels, |
| SbMediaAudioSampleType sample_type, |
| SbMediaAudioFrameStorageType storage_type, |
| SbTime timestamp, |
| int size_in_bytes); |
| |
| int channels() const { return channels_; } |
| SbMediaAudioSampleType sample_type() const { return sample_type_; } |
| SbMediaAudioFrameStorageType storage_type() const { return storage_type_; } |
| |
| bool is_end_of_stream() const { return channels_ == 0; } |
| SbTime timestamp() const { return timestamp_; } |
| const uint8_t* data() const { return storage_.data() + offset_in_bytes_; } |
| const int16_t* data_as_int16() const { |
| return reinterpret_cast<const int16_t*>(storage_.data() + offset_in_bytes_); |
| } |
| const float* data_as_float32() const { |
| return reinterpret_cast<const float*>(storage_.data() + offset_in_bytes_); |
| } |
| int size_in_bytes() const { return size_in_bytes_; } |
| |
| uint8_t* data() { return storage_.data() + offset_in_bytes_; } |
| int16_t* data_as_int16() { |
| return reinterpret_cast<int16_t*>(storage_.data() + offset_in_bytes_); |
| } |
| float* data_as_float32() { |
| return reinterpret_cast<float*>(storage_.data() + offset_in_bytes_); |
| } |
| int frames() const; |
| |
| void ShrinkTo(int new_size_in_bytes); |
| |
| // During seeking, the target time can be in the middle of the DecodedAudio |
| // object. This function will adjust the object to the seek target time by |
| // removing the frames in the beginning that are before the seek target time. |
| void AdjustForSeekTime(int sample_rate, SbTime seeking_to_time); |
| void AdjustForDiscardedDurations(int sample_rate, |
| SbTime discarded_duration_from_front, |
| SbTime discarded_duration_from_back); |
| |
| bool IsFormat(SbMediaAudioSampleType sample_type, |
| SbMediaAudioFrameStorageType storage_type) const; |
| scoped_refptr<DecodedAudio> SwitchFormatTo( |
| SbMediaAudioSampleType new_sample_type, |
| SbMediaAudioFrameStorageType new_storage_type) const |
| SB_WARN_UNUSED_RESULT; |
| |
| scoped_refptr<DecodedAudio> Clone() const; |
| |
| private: |
| scoped_refptr<DecodedAudio> SwitchSampleTypeTo( |
| SbMediaAudioSampleType new_sample_type) const; |
| scoped_refptr<DecodedAudio> SwitchStorageTypeTo( |
| SbMediaAudioFrameStorageType new_storage_type) const; |
| |
| const int channels_; |
| const SbMediaAudioSampleType sample_type_; |
| const SbMediaAudioFrameStorageType storage_type_; |
| // The timestamp of the first audio frame. |
| SbTime timestamp_; |
| Buffer storage_; |
| // The audio samples to be played are stored in the memory region starts from |
| // `storage_.data() + offset_in_bytes_`, `size_in_bytes_` bytes in total. |
| int offset_in_bytes_ = 0; |
| int size_in_bytes_ = 0; |
| |
| DecodedAudio(const DecodedAudio&) = delete; |
| void operator=(const DecodedAudio&) = delete; |
| }; |
| |
| bool operator==(const DecodedAudio& left, const DecodedAudio& right); |
| bool operator!=(const DecodedAudio& left, const DecodedAudio& right); |
| |
| // For debugging or testing only. |
| std::ostream& operator<<(std::ostream& os, const DecodedAudio& decoded_audio); |
| |
| } // namespace player |
| } // namespace starboard |
| } // namespace shared |
| } // namespace starboard |
| |
| #endif // STARBOARD_SHARED_STARBOARD_PLAYER_DECODED_AUDIO_INTERNAL_H_ |