Merge master.

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

diff --git a/src/lib/ffmpeg_decoder.cc b/src/lib/ffmpeg_decoder.cc
index 0390418be8693d1d0d84e8815c2fe922105eaf41..0f2c88fc9f8ce36f06f957b8c4172f6248c2c44c 100644 (file)
--- a/src/lib/ffmpeg_decoder.cc
+++ b/src/lib/ffmpeg_decoder.cc
@@ -296,11 +296,10 @@ FFmpegDecoder::seek (ContentTime time, bool accurate)
 
        ContentTime pre_roll = accurate ? ContentTime::from_seconds (2) : ContentTime (0);
        time -= pre_roll;
-       if (time < ContentTime (0)) {
-               time = ContentTime (0);
-       }
 
-       /* XXX: it seems debatable whether PTS should be used here... */
+       /* XXX: it seems debatable whether PTS should be used here...
+          http://www.mjbshaw.com/2012/04/seeking-in-ffmpeg-know-your-timestamp.html
+       */
        
        ContentTime const u = time - _pts_offset;
        int64_t s = u.seconds() / av_q2d (_format_context->streams[_video_stream]->time_base);
@@ -311,12 +310,6 @@ FFmpegDecoder::seek (ContentTime time, bool accurate)
                        );
        }
 
-       /* Ridiculous empirical hack */
-       s--;
-       if (s < 0) {
-               s = 0;
-       }
-
        av_seek_frame (_format_context, _video_stream, s, 0);
 
        avcodec_flush_buffers (video_codec_context());