[ffmpeg] Add aac_adtstoasc when merging if needed

Related: #1039
yt-dlp · Sep 22, 2021 · a21e0ab · a21e0ab
1 parent a76e2e0
commit a21e0ab
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/yt_dlp/YoutubeDL.py b/yt_dlp/YoutubeDL.py
@@ -2798,6 +2798,7 @@ def correct_ext(filename, ext=new_ext):
                                     'f%s' % f['format_id'], new_info['ext'])
                                 if not self._ensure_dir_exists(fname):
                                     return
+                                f['filepath'] = fname
                                 downloaded.append(fname)
                             partial_success, real_download = self.dl(fname, new_info)
                             info_dict['__real_download'] = info_dict['__real_download'] or real_download

diff --git a/yt_dlp/postprocessor/ffmpeg.py b/yt_dlp/postprocessor/ffmpeg.py
@@ -732,7 +732,9 @@ def run(self, info):
         args = ['-c', 'copy']
         for (i, fmt) in enumerate(info['requested_formats']):
             if fmt.get('acodec') != 'none':
-                args.extend(['-map', '%u:a:0' % (i)])
+                args.extend(['-map', f'{i}:a:0'])
+                if self.get_audio_codec(fmt['filepath']) == 'aac':
+                    args.extend([f'-bsf:{i}:a:0', 'aac_adtstoasc'])
             if fmt.get('vcodec') != 'none':
                 args.extend(['-map', '%u:v:0' % (i)])
         self.to_screen('Merging formats into "%s"' % filename)