New submission from Aleksey Vasenev <[email protected]>:

work:
ffmpeg.exe -i gif_sequence_bug.bmp -pix_fmt rgb24 -y 
gif_sequence_bug.gif
don't work:
ffmpeg.exe -i gif_sequence_bug.bmp -pix_fmt rgb24 -y %d.gif

output show different output codec and pixel format:
Stream #0.0, 0, 1/90000: Video: rawvideo, rgb24, 640x480, 1/25, 
Stream #0.0, 0, 1/90000: Video: gif, rgb8, 640x480, 1/25, q=2-31, 200 
kb/s, 90k tbn, 25 tbc

result:
1.gif image is black
File 'gif_sequence_bug.bmp' not attached - you can download it from 
https://roundup.ffmpeg.org/file1118.

----------
files: gif_sequence_bug.bmp
messages: 12160
priority: normal
status: new
substatus: new
title: convert to gif sequence don't work
type: bug

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