[ffmpeg] Improve format merging (Closes #3935)

10 years ago · 2aefb886fa
parent 72961c2a8a
commit 2aefb886fa
1 changed files with 1 additions and 1 deletions
--- a/youtube_dl/postprocessor/ffmpeg.py
+++ b/youtube_dl/postprocessor/ffmpeg.py
@ -487,7 +487,7 @@ class FFmpegMetadataPP(FFmpegPostProcessor):
 class FFmpegMergerPP(FFmpegPostProcessor):
    def run(self, info):
        filename = info['filepath']
-        args = ['-c', 'copy']
+        args = ['-c', 'copy', '-map', '0:v:0', '-map', '1:a:0', '-shortest']
        self._downloader.to_screen(u'[ffmpeg] Merging formats into "%s"' % filename)
        self.run_ffmpeg_multiple_files(info['__files_to_merge'], filename, args)
        return True, info