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Diffstat (limited to 'include/media/AudioBufferProvider.h')
-rw-r--r-- | include/media/AudioBufferProvider.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/include/media/AudioBufferProvider.h b/include/media/AudioBufferProvider.h new file mode 100644 index 00000000..43e4de75 --- /dev/null +++ b/include/media/AudioBufferProvider.h @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2007 The Android Open Source Project + * + * 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 ANDROID_AUDIO_BUFFER_PROVIDER_H +#define ANDROID_AUDIO_BUFFER_PROVIDER_H + +#include <utils/Errors.h> + +namespace android { +// ---------------------------------------------------------------------------- + +class AudioBufferProvider +{ +public: + + struct Buffer { + Buffer() : raw(NULL), frameCount(0) { } + union { + void* raw; + short* i16; + int8_t* i8; + }; + size_t frameCount; + }; + + virtual ~AudioBufferProvider() {} + + // value representing an invalid presentation timestamp + static const int64_t kInvalidPTS = 0x7FFFFFFFFFFFFFFFLL; // <stdint.h> is too painful + + // pts is the local time when the next sample yielded by getNextBuffer + // will be rendered. + // Pass kInvalidPTS if the PTS is unknown or not applicable. + virtual status_t getNextBuffer(Buffer* buffer, int64_t pts = kInvalidPTS) = 0; + + virtual void releaseBuffer(Buffer* buffer) = 0; +}; + +// ---------------------------------------------------------------------------- +}; // namespace android + +#endif // ANDROID_AUDIO_BUFFER_PROVIDER_H |