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Add missing check on the result of a VIDIOCCAPTURE ioctl. 

Originally committed as revision 16316 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefano Sabatini 2008-12-26 09:12:12 +00:00
parent c40432d30c
commit fd867ffd43
1 changed files with 4 additions and 1 deletions
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5
libavdevice/v4l.c
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@ -186,7 +186,10 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
s->frame_format = pict.palette;
val = 1;
ioctl(video_fd, VIDIOCCAPTURE, &val);
if (ioctl(video_fd, VIDIOCCAPTURE, &val) < 0) {
av_log(s1, AV_LOG_ERROR, "VIDIOCCAPTURE: %s\n", strerror(errno));
goto fail;
}
s->time_frame = av_gettime() * s->time_base.den / s->time_base.num;
s->use_mmap = 0;