avformat/utils: Make ff_compute_frame_duration() static

Since 1c0885334dda9ee8652e60c586fa2e3674056586 ff_compute_frame_duration
is only called from within utils.c and only for demuxers. So make it
static and remove the code in it that deals with muxers.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 0 insertions, 6 deletions

diff --git a/libavformat/internal.h b/libavformat/internal.h
index 002aeb6601..4fc1154b9d 100644
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -715,12 +715,6 @@ int ff_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out,
 
 void ff_free_stream(AVFormatContext *s, AVStream *st);
 
-/**
- * Return the frame duration in seconds. Return 0 if not available.
- */
-void ff_compute_frame_duration(AVFormatContext *s, int *pnum, int *pden, AVStream *st,
-                               AVCodecParserContext *pc, AVPacket *pkt);
-
 unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum AVCodecID id);
 
 enum AVCodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag);