Find out if a video stream is an attached pic

[Aztorius]

Hello,

I have MP3 files containing covers. Here is the stream shown by ffprobe :

Stream #0:1: Video: mjpeg (Baseline), yuvj444p(pc, bt470bg/unknown/unknown), 3000x3000, 90k tbr, 90k tbn (attached pic)
    Metadata:
      comment         : Cover (front)

Is there a way to know from pyav that this is an attached pic and not an actual video stream without using metadata comment ?

Thank you

[simonprogs]

The video stream has a disposition property: you can do something like

from av.stream import Disposition

attached_pic_streams = [ pic for pic in container.streams.video if pic.disposition == Disposition.attached_pic ]

[simonprogs]

Further to this: is it possible to create a VideoStream that is an attached_pic. I am getting errors that the format does not support the given codec, but it seems many audio formats do not support any video codec, according to the .supported_codecs property.

It appears that if I comment out the part that checks for ineligible codecs and set the disposition of the output stream, then the remuxing works fine. Perhaps there should be an check for disposition before rejecting a codec?