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check if width and height are set for loopback device

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niels
2015-05-22 19:44:00 +02:00
parent 310ec8798e
commit bb34d14799
1 changed files with 8 additions and 0 deletions
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8
veejay-current/veejay-server/libstream/v4l2utils.c
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@@ -954,6 +954,14 @@ void *v4l2open ( const char *file, const int input_channel, int host_fmt, int wi
v4l2_enum_video_standards( v, norm );
v4l2_enum_frame_sizes(v);
if( v->is_vloopback == 1 && (wid == 0 || hei == 0 ) ) {
veejay_msg(VEEJAY_MSG_ERROR, "v4l2: please set width and height (-w and -h) for video loopback device");
free(v);
close(fd);
return NULL;
}
if( v4l2_configure_format( v, host_fmt, wid, hei ) == 0 ) {
veejay_msg(VEEJAY_MSG_ERROR, "v4l2: Failed to negotiate pixel format with your capture device.");
free(v);