lavd/xv: report if no adaptor present.

11 years ago · fde219cfa8
parent 828ac6d1b5
commit fde219cfa8
1 changed files with 4 additions and 0 deletions
--- a/libavdevice/xv.c
+++ b/libavdevice/xv.c
@ -149,6 +149,10 @@ static int xv_write_header(AVFormatContext *s)
        ret = AVERROR_EXTERNAL;
        goto fail;
    }
+    if (!num_adaptors) {
+        av_log(s, AV_LOG_ERROR, "No X-Video adaptors present\n");
+        return AVERROR(ENODEV);
+    }
    xv->xv_port = ai[0].base_id;
    XvFreeAdaptorInfo(ai);