Ticket #6455: 0001-udp-ignore-UDP-packets-without-payload.patch

File 0001-udp-ignore-UDP-packets-without-payload.patch, 1.2 KB (added by danman, 9 years ago)

  • libavformat/udp.c 

    From 3abb8bc887afd7c595669342978428fea22113ee Mon Sep 17 00:00:00 2001
From: Daniel Kucera <daniel.kucera@gmail.com>
Date: Tue, 23 May 2017 20:21:58 +0200
Subject: [PATCH] udp: ignore UDP packets without payload

Time to time some devices send UDP packets without payload.
ffmpeg previously exited on receiving such packet, this patch
fixes this behaviour.

Signed-off-by: Daniel Kucera <daniel.kucera@gmail.com>
---
 libavformat/udp.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libavformat/udp.c b/libavformat/udp.c
index 3835f989c4..28fa7b2354 100644
    a b static int udp_read(URLContext *h, uint8_t *buf, int size)  
    10391039                av_fifo_generic_read(s->fifo, buf, avail, NULL);
    10401040                av_fifo_drain(s->fifo, AV_RL32(tmp) - avail);
    10411041                pthread_mutex_unlock(&s->mutex);
    1042                 return avail;
     1042                if (avail > 0){
     1043                    return avail;
     1044                } else {
     1045                    continue;
     1046                }
    10431047            } else if(s->circular_buffer_error){
    10441048                int err = s->circular_buffer_error;
    10451049                pthread_mutex_unlock(&s->mutex);