[FFmpeg-user] When capturing rawvideo from camera (avfoundation), ffmpeg adds extra 32 bytes for each frame.

Carl Eugen Hoyos ceffmpeg at gmail.com
Wed Sep 19 19:05:58 EEST 2018

2018-09-19 15:33 GMT+02:00, Peter Gusev <gpeetonn at gmail.com>:
> Hi!
> As a part of figuring out the problem I have with ffplay
> <https://stackoverflow.com/questions/52390694/video-moves-sideways-when-captured-raw-from-camera-and-piped-into-ffplay/52399554#52399554>,
> I noticed, that ffmpeg adds 32 bytes to raw 0rgb frames when capturing from
> a camera (macOS 10.12):
> $ ffmpeg -f avfoundation -pixel_format 0rgb -framerate 25 -video_size
> 640x480 -i "0" -map 0:v -c copy -f rawvideo -vframes 1 /tmp/frame.0rgb
> $ wc -c /tmp/frame.0rgb
>  1228832 /tmp/frame.0rgb

Please provide both the complete, uncut console output and one
output frame.
And please confirm if the issue has changed over the last days.

Carl Eugen

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