74 lines
2.5 KiB
C++
74 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_DECODER_V2_H
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#define FFMPEG_DECODER_V2_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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// constexpr int DECODER_UNSUPORTED = 0;
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class FfmpegDecoderV2
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{
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public:
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/**
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* @brief When decoding a video stream, you need to use this constructor to provide the required parameters.
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* @param codecId Video stream format
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* @param width Video height
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* @param height Video width
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*/
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FfmpegDecoderV2(const enum AVCodecID &codecId, const AVPixelFormat &decodePixelFormat, const int &width,
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const int &height);
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virtual ~FfmpegDecoderV2() = default;
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bool Init(void);
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bool UnInit(void);
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void DecodeData(const void *data, const size_t &size, const unsigned long long &pts,
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std::function<void(AVFrame *frame)> callback);
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private:
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void AVParseData(const void *data, const size_t &size, std::function<void(AVFrame *frame)> callback);
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void AVDecodeData(AVPacket *pkt, std::function<void(AVFrame *frame)> callback);
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private:
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static int select_sample_rate(const AVCodec *codec);
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static int select_channel_layout(const AVCodec *codec, AVChannelLayout *dst);
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static int check_sample_fmt(const AVCodec *codec, enum AVSampleFormat sample_fmt);
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private:
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const enum AVCodecID mCodecId;
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AVCodec *mCodec;
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AVCodecContext *mCodecCtx;
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AVFrame *mFrame;
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AVPacket *mPacket;
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AVCodecParserContext *mParser;
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const int mVideoWidth;
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const int mVideoHeight;
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const AVPixelFormat mDecodePixelFormat;
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};
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#endif |