[FFmpeg-cvslog] avformat/wavenc: simplify, use av_rescale_q() instead

[Limin Wang]

ffmpeg | branch: master | Limin Wang <lance.lmwang at gmail.com> | Tue Apr 28 11:49:17 2020 +0800| [026b3a901865e77b3804e6e0a82652f315d171e6] | committer: Limin Wang

avformat/wavenc: simplify, use av_rescale_q() instead

Signed-off-by: Limin Wang <lance.lmwang at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=026b3a901865e77b3804e6e0a82652f315d171e6
---

 libavformat/wavenc.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/libavformat/wavenc.c b/libavformat/wavenc.c
index f6f5710802..1027f107ee 100644
--- a/libavformat/wavenc.c
+++ b/libavformat/wavenc.c
@@ -434,10 +434,9 @@ static int wav_write_trailer(AVFormatContext *s)
                    "Filesize %"PRId64" invalid for wav, output file will be broken\n",
                    file_size);
         }
-
-        number_of_samples = av_rescale(wav->maxpts - wav->minpts + wav->last_duration,
-                                       s->streams[0]->codecpar->sample_rate * (int64_t)s->streams[0]->time_base.num,
-                                       s->streams[0]->time_base.den);
+        number_of_samples = av_rescale_q(wav->maxpts - wav->minpts + wav->last_duration,
+                                       s->streams[0]->time_base,
+                                       av_make_q(1, s->streams[0]->codecpar->sample_rate));
 
         if(s->streams[0]->codecpar->codec_tag != 0x01) {
             /* Update num_samps in fact chunk */