70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
#ifndef ZLMEDIAKIT_JPEG_H
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#define ZLMEDIAKIT_JPEG_H
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#include "Extension/Frame.h"
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#include "Extension/Track.h"
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namespace mediakit {
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class JPEGTrack : public VideoTrack {
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public:
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using Ptr = std::shared_ptr<JPEGTrack>;
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CodecId getCodecId() const override { return CodecJPEG; }
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int getVideoHeight() const override { return _height; }
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int getVideoWidth() const override { return _width; }
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float getVideoFps() const override { return _fps; }
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bool ready() const override { return _fps > 0; }
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bool inputFrame(const Frame::Ptr &frame) override;
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private:
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Sdp::Ptr getSdp(uint8_t payload_type) const override;
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Track::Ptr clone() const override { return std::make_shared<JPEGTrack>(*this); }
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void getVideoResolution(const uint8_t *buf, int len);
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private:
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int _width = 0;
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int _height = 0;
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float _fps = 0;
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uint64_t _tmp = 0;
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};
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class JPEGFrameType {
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public:
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virtual ~JPEGFrameType() = default;
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virtual uint8_t pixType() const = 0;
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};
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template <typename Parent>
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class JPEGFrame : public Parent, public JPEGFrameType {
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public:
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static constexpr auto kJFIFSize = 20u;
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/**
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* JPEG/MJPEG帧
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* @param pix_type pixel format type; AV_PIX_FMT_YUVJ422P || (AVCOL_RANGE_JPEG && AV_PIX_FMT_YUV422P) : 1; AV_PIX_FMT_YUVJ420P || (AVCOL_RANGE_JPEG && AV_PIX_FMT_YUV420P) : 0
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* JPEG/MJPEG frame
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* @param pix_type pixel format type; AV_PIX_FMT_YUVJ422P || (AVCOL_RANGE_JPEG && AV_PIX_FMT_YUV422P) : 1; AV_PIX_FMT_YUVJ420P || (AVCOL_RANGE_JPEG && AV_PIX_FMT_YUV420P) : 0
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* [AUTO-TRANSLATED:d746e541]
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*/
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template <typename... ARGS>
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JPEGFrame(uint8_t pix_type, ARGS &&...args) : Parent(std::forward<ARGS>(args)...) {
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_pix_type = pix_type;
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// JFIF头固定20个字节长度 [AUTO-TRANSLATED:bd63b447]
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// JFIF header is fixed at 20 bytes in length
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CHECK(this->size() > kJFIFSize);
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}
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size_t prefixSize() const override { return 0; }
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bool keyFrame() const override { return true; }
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bool configFrame() const override { return false; }
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CodecId getCodecId() const override { return CodecJPEG; }
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uint8_t pixType() const override { return _pix_type; }
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private:
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uint8_t _pix_type;
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};
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}//namespace mediakit
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#endif //ZLMEDIAKIT_JPEG_H
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