From 11b9c0f4d34f4f916077697f5796d81a56dec2a6 Mon Sep 17 00:00:00 2001 From: Luca Abeni Date: Mon, 13 Mar 2006 09:47:37 +0000 Subject: [PATCH] Tell the user why video capture is failing Originally committed as revision 5160 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavformat/grab.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/libavformat/grab.c b/libavformat/grab.c index 8b81183323..e16ea7b875 100644 --- a/libavformat/grab.c +++ b/libavformat/grab.c @@ -68,16 +68,24 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap) const char *video_device; int j; - if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0) + if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0) { + av_log(s1, AV_LOG_ERROR, "Bad capture size (%dx%d) or wrong time base (%d)\n", + ap->width, ap->height, ap->time_base.den); + return -1; + } width = ap->width; height = ap->height; frame_rate = ap->time_base.den; frame_rate_base = ap->time_base.num; - if((unsigned)width > 32767 || (unsigned)height > 32767) + if((unsigned)width > 32767 || (unsigned)height > 32767) { + av_log(s1, AV_LOG_ERROR, "Capture size is out of range: %dx%d\n", + width, height); + return -1; + } st = av_new_stream(s1, 0); if (!st)