Hand-apply 80562fe5dce5fd625da583ca6f7c2833f9db8754 from master (remove default scale...

[dcpomatic.git] / src / lib / ffmpeg_examiner.cc

diff --git a/src/lib/ffmpeg_examiner.cc b/src/lib/ffmpeg_examiner.cc
index 48d85da6f11113cb6cabc83215505c8df766110a..46e93b16c322e9d469635b9d5e82cee11f366f3c 100644 (file)
--- a/src/lib/ffmpeg_examiner.cc
+++ b/src/lib/ffmpeg_examiner.cc
@@ -180,6 +180,13 @@ FFmpegExaminer::video_length () const
        return ContentTime (max (ContentTime::Type (1), length.get ()));
 }
 
+optional<float>
+FFmpegExaminer::sample_aspect_ratio () const
+{
+       AVRational sar = av_guess_sample_aspect_ratio (_format_context, _format_context->streams[_video_stream], 0);
+       return float (sar.num) / sar.den;
+}
+
 string
 FFmpegExaminer::audio_stream_name (AVStream* s) const
 {