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Tell the user why video capture is failing

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Originally committed as revision 5160 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Luca Abeni
2006-03-13 09:47:37 +00:00
parent 0816152af9
commit 11b9c0f4d3
1 changed files with 10 additions and 2 deletions
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12
libavformat/grab.c
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@@ -68,16 +68,24 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
const char *video_device; const char *video_device;
int j; 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; return -1;
}
width = ap->width; width = ap->width;
height = ap->height; height = ap->height;
frame_rate = ap->time_base.den; frame_rate = ap->time_base.den;
frame_rate_base = ap->time_base.num; 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; return -1;
}
st = av_new_stream(s1, 0); st = av_new_stream(s1, 0);
if (!st) if (!st)