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完善代码
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@ -48,17 +48,13 @@ void MP4Muxer::inputFrame(const Frame::Ptr &frame) {
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}
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if (!_started) {
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//还没开始
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if (!_have_video) {
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_started = true;
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} else {
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if (frame->getTrackType() != TrackVideo || !frame->keyFrame()) {
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//如果首帧是音频或者是视频但是不是i帧,那么不能开始写文件
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return;
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}
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//开始写文件
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_started = true;
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//该逻辑确保含有视频时,第一帧为关键帧
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if (_have_video && !frame->keyFrame()) {
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//含有视频,但是不是关键帧,那么前面的帧丢弃
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return;
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}
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//开始写文件
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_started = true;
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}
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//mp4文件时间戳需要从0开始
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