diff options
Diffstat (limited to 'webrtc/modules/video_coding/generic_decoder.h')
-rw-r--r-- | webrtc/modules/video_coding/generic_decoder.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/webrtc/modules/video_coding/generic_decoder.h b/webrtc/modules/video_coding/generic_decoder.h new file mode 100644 index 0000000000..67ceabfc53 --- /dev/null +++ b/webrtc/modules/video_coding/generic_decoder.h @@ -0,0 +1,111 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef WEBRTC_MODULES_VIDEO_CODING_GENERIC_DECODER_H_ +#define WEBRTC_MODULES_VIDEO_CODING_GENERIC_DECODER_H_ + +#include "webrtc/modules/include/module_common_types.h" +#include "webrtc/modules/video_coding/include/video_codec_interface.h" +#include "webrtc/modules/video_coding/encoded_frame.h" +#include "webrtc/modules/video_coding/timestamp_map.h" +#include "webrtc/modules/video_coding/timing.h" + +namespace webrtc { + +class VCMReceiveCallback; + +enum { kDecoderFrameMemoryLength = 10 }; + +struct VCMFrameInformation { + int64_t renderTimeMs; + int64_t decodeStartTimeMs; + void* userData; + VideoRotation rotation; +}; + +class VCMDecodedFrameCallback : public DecodedImageCallback { + public: + VCMDecodedFrameCallback(VCMTiming* timing, Clock* clock); + virtual ~VCMDecodedFrameCallback(); + void SetUserReceiveCallback(VCMReceiveCallback* receiveCallback); + VCMReceiveCallback* UserReceiveCallback(); + + virtual int32_t Decoded(VideoFrame& decodedImage); // NOLINT + virtual int32_t Decoded(VideoFrame& decodedImage, // NOLINT + int64_t decode_time_ms); + virtual int32_t ReceivedDecodedReferenceFrame(const uint64_t pictureId); + virtual int32_t ReceivedDecodedFrame(const uint64_t pictureId); + + uint64_t LastReceivedPictureID() const; + void OnDecoderImplementationName(const char* implementation_name); + + void Map(uint32_t timestamp, VCMFrameInformation* frameInfo); + int32_t Pop(uint32_t timestamp); + + private: + // Protect |_receiveCallback| and |_timestampMap|. + CriticalSectionWrapper* _critSect; + Clock* _clock; + VCMReceiveCallback* _receiveCallback GUARDED_BY(_critSect); + VCMTiming* _timing; + VCMTimestampMap _timestampMap GUARDED_BY(_critSect); + uint64_t _lastReceivedPictureID; +}; + +class VCMGenericDecoder { + friend class VCMCodecDataBase; + + public: + explicit VCMGenericDecoder(VideoDecoder* decoder, bool isExternal = false); + ~VCMGenericDecoder(); + + /** + * Initialize the decoder with the information from the VideoCodec + */ + int32_t InitDecode(const VideoCodec* settings, int32_t numberOfCores); + + /** + * Decode to a raw I420 frame, + * + * inputVideoBuffer reference to encoded video frame + */ + int32_t Decode(const VCMEncodedFrame& inputFrame, int64_t nowMs); + + /** + * Free the decoder memory + */ + int32_t Release(); + + /** + * Reset the decoder state, prepare for a new call + */ + int32_t Reset(); + + /** + * Set decode callback. Deregistering while decoding is illegal. + */ + int32_t RegisterDecodeCompleteCallback(VCMDecodedFrameCallback* callback); + + bool External() const; + bool PrefersLateDecoding() const; + + private: + VCMDecodedFrameCallback* _callback; + VCMFrameInformation _frameInfos[kDecoderFrameMemoryLength]; + uint32_t _nextFrameInfoIdx; + VideoDecoder* const _decoder; + VideoCodecType _codecType; + bool _isExternal; + bool _keyFrameDecoded; +}; + +} // namespace webrtc + +#endif // WEBRTC_MODULES_VIDEO_CODING_GENERIC_DECODER_H_ |