Hello,
I wrote this simple patch a while back trying to solve ticket #4030,
but I think we might as well apply it as it would make debugging
easier in general.
Giorgio Vazzana
From 1b471609878a9982960bf25e921c560e595ad667 Mon Sep 17 00:00:00 2001
From: Giorgio Vazzana <mywin...@gmail.com>
Date: Thu, 16 Oct 2014 11:10:03 +0200
Subject: [PATCH] lavd/v4l2: print buffer flags in case of error
---
libavdevice/v4l2.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavdevice/v4l2.c b/libavdevice/v4l2.c
index cf7a92c..d6fc79f 100644
--- a/libavdevice/v4l2.c
+++ b/libavdevice/v4l2.c
@@ -525,8 +525,8 @@ static int mmap_read_frame(AVFormatContext *ctx, AVPacket *pkt)
if (s->frame_size > 0 && buf.bytesused != s->frame_size) {
av_log(ctx, AV_LOG_ERROR,
- "The v4l2 frame is %d bytes, but %d bytes are expected\n",
- buf.bytesused, s->frame_size);
+ "The v4l2 frame is %d bytes, but %d bytes are expected. Flags: 0x%08X\n",
+ buf.bytesused, s->frame_size, buf.flags);
enqueue_buffer(s, &buf);
return AVERROR_INVALIDDATA;
}
--
1.7.9.5
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