[Libav-user] Encoding and Decoding Single Frames with libAV

Paul B Mahol onemda at gmail.com
Thu Sep 5 18:43:57 CEST 2013

On 9/5/13, James Board <jpboard2 at yahoo.com> wrote:
> Is there a way to use libav to encode and decode a single frame of
> image data with a lossless codec such as ffvhuff?  I know this can
> be done with video.  But if I have a single frame of image data stored
> in a ppm or pnm file, can I read it into my libAV program, compress with
> the ffvhuff codec, and then write the compressed output to a file?  And
> later, do the reverse?

Not with ffvhuff (but it can be added), but with ffv1:

ffmpeg -i input out%d.ffv1-img

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