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#pragma once
#include "stream.h"
#include "subtitle_sampler.h"
namespace ffmpeg {
/**
* Class uses FFMPEG library to decode one subtitle stream.
*/
struct AVSubtitleKeeper : AVSubtitle {
int64_t release{0};
};
class SubtitleStream : public Stream {
public:
SubtitleStream(
AVFormatContext* inputCtx,
int index,
bool convertPtsToWallTime,
const SubtitleFormat& format);
~SubtitleStream() override;
protected:
void setFramePts(DecoderHeader* header, bool flush) override;
private:
int initFormat() override;
int analyzePacket(const AVPacket* packet, bool* gotFrame) override;
int copyFrameBytes(ByteStorage* out, bool flush) override;
void releaseSubtitle();
private:
SubtitleSampler sampler_;
AVSubtitleKeeper sub_;
};
} // namespace ffmpeg
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