Hi, On 09/29/2014 11:23 PM, Nicolas Dufresne wrote: > This was initially reported to GStreamer project: > https://bugzilla.gnome.org/show_bug.cgi?id=737521 > > We track this down to be a regression introduced in v4l2-utils from version > 1.4.0. In recent GStreamer we make sure the buffer.length field (retreived > with QUERYBUF) is bigger or equal to the expected sizeimage (as obtained in > S_FMT). This is to fail cleanly and avoid buffer overflow if a driver (or > libv4l2) endup doing a short allocation. Since 1.4.0, this field is always 0 > if an emulated format is selected. > > Reverting patch 10213c brings back normal behaviour: > http://git.linuxtv.org/cgit.cgi/v4l-utils.git/commit/?id=10213c975afdfcc90aa7de39e66c40cd7e8a57f7 > > This currently makes use of any emulated format impossible in GStreamer. > v4l2-utils 1.4.0 is being shipped at least in debian/unstable at the moment.
Oops, thanks for the bug report. I've created a 3 patch patch-set fixing this, which I'll send right after this mail. The actual fix is in the 2nd patch, the first patch and third patches fix 2 unrelated bugs which I noticed while working on this. Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
