* clarifying the AVInputFormat::read_seek return value

* changing dv_read_seek() to return the proper value
    (patch by Maksym Veremeyenko)

Originally committed as revision 9418 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/avformat.h

@@ -216,6 +216,7 @@ typedef struct AVInputFormat {
      * @param stream_index must not be -1
      * @param flags selects which direction should be preferred if no exact
      *              match is available
+     * @return >= 0 on success (but not necessarily the new offset)
      */
     int (*read_seek)(struct AVFormatContext *,
                      int stream_index, int64_t timestamp, int flags);