[FFmpeg-user] Convert a frame to anything readable

[Gyan Doshi]

On 11/7/2017 11:03 AM, Constantine wrote:

>          Stream #0:0: Video: vp8 (VP80 / 0x30385056), yuv420p(progressive),
> 480x640, 527 kb/s, SAR 1:1 DAR 3:4, 60 fps, 60 tbr, 60 tbn, 60 tbc

>      [vp8 @ 0x55c1ee9e05e0] Discarding interframe without a prior keyframe!

VP8, like most delivery codecs, is an interframe codec. Supplying an 
isolated frame will fail to decode, except perhaps for keyframes.

What you could try is to extract all frames and cat them together in 
sequence to a single file. Then feed that to ffmpeg. Worth a try.

Gyan