diff options
Diffstat (limited to 'include/media')
-rw-r--r-- | include/media/stagefright/OMXCodec.h | 3 | ||||
-rw-r--r-- | include/media/stagefright/SkipCutBuffer.h | 58 |
2 files changed, 61 insertions, 0 deletions
diff --git a/include/media/stagefright/OMXCodec.h b/include/media/stagefright/OMXCodec.h index 392ea87..7c612ba 100644 --- a/include/media/stagefright/OMXCodec.h +++ b/include/media/stagefright/OMXCodec.h @@ -30,6 +30,7 @@ struct MediaCodecList; class MemoryDealer; struct OMXCodecObserver; struct CodecProfileLevel; +class SkipCutBuffer; struct OMXCodec : public MediaSource, public MediaBufferObserver { @@ -201,6 +202,7 @@ private: ReadOptions::SeekMode mSeekMode; int64_t mTargetTimeUs; bool mOutputPortSettingsChangedPending; + SkipCutBuffer *mSkipCutBuffer; MediaBuffer *mLeftOverBuffer; @@ -378,6 +380,7 @@ status_t QueryCodecs( const char *mimeType, bool queryDecoders, Vector<CodecCapabilities> *results); + } // namespace android #endif // OMX_CODEC_H_ diff --git a/include/media/stagefright/SkipCutBuffer.h b/include/media/stagefright/SkipCutBuffer.h new file mode 100644 index 0000000..5c7cd47 --- /dev/null +++ b/include/media/stagefright/SkipCutBuffer.h @@ -0,0 +1,58 @@ +/* + * Copyright (C) 2012 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 SKIP_CUT_BUFFER_H_ + +#define SKIP_CUT_BUFFER_H_ + +#include <media/stagefright/MediaBuffer.h> + +namespace android { + +/** + * utility class to cut the start and end off a stream of data in MediaBuffers + * + */ +class SkipCutBuffer { + public: + // 'skip' is the number of bytes to skip from the beginning + // 'cut' is the number of bytes to cut from the end + // 'output_size' is the size in bytes of the MediaBuffers that will be used + SkipCutBuffer(int32_t skip, int32_t cut, int32_t output_size); + virtual ~SkipCutBuffer(); + + // Submit one MediaBuffer for skipping and cutting. This may consume all or + // some of the data in the buffer, or it may add data to it. + // After this, the caller should continue processing the buffer as usual. + void submit(MediaBuffer *buffer); + void clear(); + size_t size(); // how many bytes are currently stored in the buffer + + private: + void write(const char *src, size_t num); + size_t read(char *dst, size_t num); + int32_t mFrontPadding; + int32_t mBackPadding; + int32_t mWriteHead; + int32_t mReadHead; + int32_t mCapacity; + char* mCutBuffer; + DISALLOW_EVIL_CONSTRUCTORS(SkipCutBuffer); +}; + +} // namespace android + +#endif // OMX_CODEC_H_ |