From c89488588b740e7ff6fb7cc7344e9501e6baba01 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Tue, 6 Dec 2011 16:01:21 +0100
Subject: [PATCH] ffmpeg: Warn if filters poll & request frame behave wrongly.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
ffmpeg.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/ffmpeg.c b/ffmpeg.c
index e10f0a23db0..7929da2cf7d 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -1923,8 +1923,10 @@ static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int
while (frame_available) {
if (ost->output_video_filter) {
AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
- if (av_buffersink_get_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
+ if (av_buffersink_get_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0){
+ av_log(0, AV_LOG_WARNING, "AV Filter told us it has a frame available but failed to output one\n");
goto cont;
+ }
if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
av_free(buffer_to_free);
return AVERROR(ENOMEM);
--
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