avformat: move default for max_analyze_duration into utils.c

this way we can do better tha a single fixed constant value

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 1 insertions, 0 deletions

diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 5ca6f5aa0f..2103f50e57 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -1291,6 +1291,7 @@ typedef struct AVFormatContext {
      * Maximum duration (in AV_TIME_BASE units) of the data read
      * from input in avformat_find_stream_info().
      * Demuxing only, set by the caller before avformat_find_stream_info().
+     * Can be set to 0 to let avformat choose using a heuristic.
      */
     int max_analyze_duration;