X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fflvenc.c;h=5cf3ce8a1abe44df09ef4eeca6edc1305d9d8ed3;hb=a8867850185a14e580dfeed2b39e8aae5e306e7c;hp=1aaf0333caf50d23c17df37ee85f89a8c55afa89;hpb=b0d0d7e4d0581ccfeea37cc3fd0d3ca9d999fbfc;p=ffmpeg

diff --git a/libavformat/flvenc.c b/libavformat/flvenc.c
index 1aaf0333caf..5cf3ce8a1ab 100644
--- a/libavformat/flvenc.c
+++ b/libavformat/flvenc.c
@@ -580,7 +580,7 @@ static int shift_data(AVFormatContext *s)
     int n = 0;
     int64_t metadata_size = 0;
     FLVContext *flv = s->priv_data;
-    int64_t pos, pos_end = avio_tell(s->pb);
+    int64_t pos, pos_end = avio_tell(s->pb); /* Save the pre-shift size. */
     uint8_t *buf, *read_buf[2];
     int read_buf_id = 0;
     int read_size[2];
@@ -608,7 +608,6 @@ static int shift_data(AVFormatContext *s)
 
     avio_seek(s->pb, flv->metadata_totalsize_pos, SEEK_SET);
     avio_wb32(s->pb, flv->metadata_totalsize + 11 + metadata_size);
-    avio_seek(s->pb, pos_end, SEEK_SET);
 
     /* Shift the data: the AVIO context of the output can only be used for
      * writing, so we re-open the same output, but for reading. It also avoids
@@ -621,9 +620,7 @@ static int shift_data(AVFormatContext *s)
         goto end;
     }
 
-    /* mark the end of the shift to up to the last data we wrote, and get ready
-     * for writing */
-    pos_end = avio_tell(s->pb);
+    /* Get ready for writing. */
     avio_seek(s->pb, flv->keyframes_info_offset + metadata_size, SEEK_SET);
 
     /* start reading at where the keyframe index information will be placed */