[Libav-user] Is it possible to extract motion vectors directly from compressed video?
zakharov at restream.rt.ru
Wed Mar 28 16:23:24 EEST 2018
Hello, dear friends,
I’m failed to find the way to extract motion vectors from mp4 video without decoding.
Use function “avcodec_receive_frame((AVCodecContext *avctx, AVFrame *frame) “ stipulates full decoding of the frame,
And then getting side data. Some people told me, it is possible without decoding. But how?
I am not spec in codecs, alas…Could someone help, please?
Sent from Mail for Windows 10
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