diff options
| -rw-r--r-- | libavdevice/v4l.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libavdevice/v4l.c b/libavdevice/v4l.c index b350adb0cd..af9f0a4713 100644 --- a/libavdevice/v4l.c +++ b/libavdevice/v4l.c @@ -181,7 +181,10 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap) s->video_win.chromakey = -1; s->video_win.flags = 0; - ioctl(video_fd, VIDIOCSWIN, s->video_win); + if (ioctl(video_fd, VIDIOCSWIN, s->video_win) < 0) { + av_log(s1, AV_LOG_ERROR, "VIDIOCSWIN: %s\n", strerror(errno)); + goto fail; + } s->frame_format = pict.palette; |