On Mon, Sep 01, 2014 at 11:00:14PM +0200, Giorgio Vazzana wrote: > 2014-09-01 22:46 GMT+02:00 Reimar Döffinger <reimar.doeffin...@gmx.de>: > > On Mon, Sep 01, 2014 at 10:33:15PM +0200, Giorgio Vazzana wrote: > >> +static int enqueue_buffer(struct video_data *s, struct v4l2_buffer *buf) > >> +{ > >> + int res = 0; > >> + > >> + if (v4l2_ioctl(s->fd, VIDIOC_QBUF, buf) < 0) { > >> + res = AVERROR(errno); > >> + av_log(NULL, AV_LOG_ERROR, "ioctl(VIDIOC_QBUF): %s\n", > >> av_err2str(res)); > >> + } else { > >> + avpriv_atomic_int_add_and_fetch(&s->buffers_queued, 1); > >> + } > >> + > >> + return res; > > > > Nit: I'd prefer something simpler that avoids cluttering the normal path > > because of error handling like: > > > >> + if (v4l2_ioctl(s->fd, VIDIOC_QBUF, buf) < 0) { > >> + av_log(NULL, AV_LOG_ERROR, "ioctl(VIDIOC_QBUF): %s\n", > >> av_err2str(res)); > >> + return AVERROR(errno); > > If we call av_log(), errno is not guaranteed to be the same after the > call. Also, av_err2str() needs AVERROR(errno). > > >> + } > >> + avpriv_atomic_int_add_and_fetch(&s->buffers_queued, 1); > >> + return 0; > > > > > > > > > >> static void mmap_release_buffer(void *opaque, uint8_t *data) > > > > I haven't checked, but I suspect this function could be made simpler > > and more likely to not re-introduce these bugs by using for the > > error paths goto. > > Admittedly that doesn't belong in this patch anyway though. > > OK, we'll fix this in another patch then.
should i apply the previous patch or wait ? also if you want, you can add yourself to the v4l2 maintainers in the MAINTAINERs file, as you seem to be doing a signifiant part of its maintaince already [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Into a blind darkness they enter who follow after the Ignorance, they as if into a greater darkness enter who devote themselves to the Knowledge alone. -- Isha Upanishad
signature.asc
Description: Digital signature
_______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel