[FFmpeg-cvslog] Do not drop packets with no valid ->pos set as e.g. DV-in-AVI produces.

[Reimar Döffinger]

ffmpeg | branch: master | Reimar Döffinger <Reimar.Doeffinger at gmx.de> | Sat Apr 30 11:49:49 2011 +0200| [1a9f9f81b1244b952126bb65bc741b04d3534f81] | committer: Reimar Döffinger

Do not drop packets with no valid ->pos set as e.g. DV-in-AVI produces.

Fixes ticket #140.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1a9f9f81b1244b952126bb65bc741b04d3534f81
---

 libavformat/avidec.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index 6a5d1e7..c497b9a 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -1016,7 +1016,7 @@ resync:
             ast->packet_size= 0;
         }
 
-        if(!avi->non_interleaved && ast->seek_pos > pkt->pos){
+        if(!avi->non_interleaved && pkt->pos >= 0 && ast->seek_pos > pkt->pos){
             av_free_packet(pkt);
             goto resync;
         }