78 lines
1.8 KiB
C++
78 lines
1.8 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2019 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef FFMPEGDECODER_H
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#define FFMPEGDECODER_H
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extern "C" {
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#include <libavformat/avformat.h>
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#include <libswscale/swscale.h>
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#include <libswresample/swresample.h>
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}
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#include <QVector>
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#include "decoder/decoder.h"
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/**
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* @brief A Decoder derivative that wraps FFmpeg functions as on Olive decoder
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*/
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class FFmpegDecoder : public Decoder
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{
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public:
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FFmpegDecoder();
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virtual bool Probe(Footage *f) override;
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virtual bool Open() override;
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virtual FramePtr Retrieve(const rational &timecode, const rational &length = 0) override;
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virtual void Close() override;
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private:
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void FFmpegErr(int error_code);
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void Error(const QString& s);
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int GetFrame();
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void Index();
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QString GetIndexFilename();
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bool LoadFrameIndex();
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void SaveFrameIndex();
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AVPixelFormat GetCompatiblePixelFormat(const AVPixelFormat& pix_fmt);
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AVFormatContext* fmt_ctx_;
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AVCodecContext* codec_ctx_;
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AVStream* avstream_;
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AVDictionary* opts_;
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AVFrame* frame_;
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AVPacket* pkt_;
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SwsContext* scale_ctx_;
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SwrContext* resample_ctx_;
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int output_fmt_;
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QVector<int64_t> frame_index_;
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};
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#endif // FFMPEGDECODER_H
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