[FFmpegThumbnailsConvertor] Fix conversion from GIF

Closes #2988
2 years ago · 5f2a7f7c4a
parent 30389593c2
commit 5f2a7f7c4a
1 changed files with 2 additions and 1 deletions
--- a/yt_dlp/postprocessor/ffmpeg.py
+++ b/yt_dlp/postprocessor/ffmpeg.py
@ -1083,8 +1083,9 @@ class FFmpegThumbnailsConvertorPP(FFmpegPostProcessor):
        thumbnail_conv_filename = replace_extension(thumbnail_filename, target_ext)

        self.to_screen(f'Converting thumbnail "{thumbnail_filename}" to {target_ext}')
+        _, source_ext = os.path.splitext(thumbnail_filename)
        self.real_run_ffmpeg(
-            [(thumbnail_filename, ['-f', 'image2', '-pattern_type', 'none'])],
+            [(thumbnail_filename, [] if source_ext == '.gif' else ['-f', 'image2', '-pattern_type', 'none'])],
            [(thumbnail_conv_filename.replace('%', '%%'), self._options(target_ext))])
        return thumbnail_conv_filename