lavd/xv: report if no adaptor present.

fde219cf · Nicolas George · 828ac6d1 · fde219cf
Commit fde219cf authored Dec 29, 2013 by Nicolas George
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xv.c libavdevice/xv.c +4 -0

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--- 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);