fix mp4 stts box bug. #4190
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fix mp4 stts box bug. #4190
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How to reproduce?
./objs/srs -c conf/dvr.mp4.confffmpeg -re -i output.flv -c copy -f flv rtmp://localhost/live/livestreamthe
output.flvis recorded from a DJI drone, download from this google drive link: https://drive.google.com/file/d/1IVoDXI-WYoIlKiyzs65fCsDRRt0z-EuU/view?usp=sharinglivestream.*.mp4located intrunk/objs/nginx/html/live.Cause
The Mp4 frame rate is determined by mp4 box:
mdhdandstts. But thesttsencoding in srs has bugs. The aboveoutput.flvvideo file has a lot ofSEItype of nalu, which is not video samples, SRS can't calculate thesttscorrectly.How to calculate
stts?check doc ISO/IEC 14496-12:2012(E) 8.6.1.2 Decoding Time to Sample Box.
https://ossrs.net/lts/zh-cn/assets/files/ISO_IEC_14496-12-base-format-2012-b70dd5f101daecd072700609842c9649.pdf