[SCM] libav/experimental: Only add 1 index entry per keyframe. Idea from a patch by samsung.

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit 134271c232f6cb497fc66ae938008b11201be2ab
Author: Michael Niedermayer <michaelni at gmx.at>
Date:   Wed Dec 16 21:24:04 2009 +0000

    Only add 1 index entry per keyframe.
    Idea from a patch by samsung.
    
    Originally committed as revision 20888 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index 78c99f3..ef7c2d3 100644
--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -1065,7 +1065,7 @@ static void asf_build_simple_index(AVFormatContext *s, int stream_index)
     url_fseek(s->pb, asf->data_object_offset + asf->data_object_size, SEEK_SET);
     get_guid(s->pb, &g);
     if (!guidcmp(&g, &index_guid)) {
-        int64_t itime;
+        int64_t itime, last_pos=-1;
         int pct, ict;
         int64_t av_unused gsize= get_le64(s->pb);
         get_guid(s->pb, &g);
@@ -1080,8 +1080,11 @@ static void asf_build_simple_index(AVFormatContext *s, int stream_index)
             int64_t pos      = s->data_offset + s->packet_size*(int64_t)pktnum;
             int64_t index_pts= av_rescale(itime, i, 10000);
 
+            if(pos != last_pos){
             av_log(s, AV_LOG_DEBUG, "pktnum:%d, pktct:%d\n", pktnum, pktct);
             av_add_index_entry(s->streams[stream_index], pos, index_pts, s->packet_size, 0, AVINDEX_KEYFRAME);
+            last_pos=pos;
+            }
         }
         asf->index_read= 1;
     }

-- 
Libav/FFmpeg packaging