83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
/*
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* Copyright (c) 2023 Fancy Code.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef FFMPEG_THUMBNAIL_H
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#define FFMPEG_THUMBNAIL_H
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#include "FfmpegDecoder.h"
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#include "FfmpegEncoder.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <libavcodec/avcodec.h>
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#include <libavcodec/packet.h>
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#include <libavformat/avformat.h>
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#include <libavutil/avassert.h>
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#include <libavutil/avutil.h>
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#include <libavutil/channel_layout.h>
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#include <libavutil/imgutils.h>
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#include <libavutil/mathematics.h>
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#include <libavutil/opt.h>
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#include <libavutil/timestamp.h>
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#include <libswresample/swresample.h>
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#include <libswscale/swscale.h>
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#ifdef __cplusplus
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}
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#endif
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#include <functional>
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#include <memory>
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typedef struct thumbnail_info
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{
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thumbnail_info(const int &srouceWidth, const int &srouceHeight, const int &targetWidth, const int &targetHeight);
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const int mSrouceWidth;
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const int mSrouceHeight;
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const int mTargetWidth;
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const int mTargetHeight;
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} ThumbnailInfo;
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class FfmpegThumbnail
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{
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public:
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FfmpegThumbnail(const AVCodecID &encodecId, const AVCodecID &decodecId);
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virtual ~FfmpegThumbnail() = default;
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void Init(const ThumbnailInfo &thumbnailInfo);
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void UnInit(void);
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bool CreateThumbnail(const std::string &outputFile, const void *data, const size_t &size);
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private:
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void GetDecodeDataCallback(AVFrame *frame);
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void GetEncodeDataCallback(AVPacket *pkt, const std::string &fileName);
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protected:
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virtual void EncodeDataToPicture(AVFrame *frame);
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protected:
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static bool SavePicture(const std::string &fileName, const void *data, const size_t &size);
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private:
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std::shared_ptr<FfmpegEncoder> mEncoder;
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std::shared_ptr<FfmpegDecoder> mDecoder;
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std::function<void(AVFrame *)> mDecodeCallback;
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std::function<void(AVPacket *)> mEncodeCallback;
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protected:
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AVFormatContext *mOutputFormat;
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AVStream *mStream;
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struct SwsContext *mSwsCtx;
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int mSrouceWidth;
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int mSrouceHeight;
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int mTargetWidth;
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int mTargetHeight;
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const AVCodecID mEncodecId;
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const AVCodecID mDecodecId;
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};
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#endif |