[FFmpeg-devel] [PATCH] avcodec: rewrite gif muxing and encoding

Carl Eugen Hoyos ceffmpeg at gmail.com
Tue Dec 11 18:44:41 EET 2018


2018-12-11 17:40 GMT+01:00, Paul B Mahol <onemda at gmail.com>:
> On 12/11/18, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
>> 2018-12-11 17:37 GMT+01:00, Paul B Mahol <onemda at gmail.com>:
>>> On 12/11/18, Paul B Mahol <onemda at gmail.com> wrote:
>>>> On 12/11/18, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
>>>>> 2018-12-11 17:18 GMT+01:00, Paul B Mahol <onemda at gmail.com>:
>>>>>> On 12/11/18, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
>>>>>>> 2018-12-11 16:02 GMT+01:00, Paul B Mahol <onemda at gmail.com>:
>>>>>>>> Now "-c copy" works.
>>>>>>>
>>>>>>> Please mention ticket #6640.
>>>>>>>
>>>>>>> When using the commands there, the output file has a different
>>>>>>> byte at position 0xbb06 (0x0a -> 0x05), do you know why?
>>>>>>
>>>>>> Dunno, md5 of decoded output is same. I fixed some artifacts in last
>>>>>> patch
>>>>>
>>>>> md5sum of original and decoded file is different here.
>>>>
>>>> Test latest patch.
>>
>> With the latest patch, md5sum of original and remuxed file are different
>> here.
>>
>
> Of course, you found single byte change.
>
>>> Test -f md5 - not md5sum.
>>
>> How can you compare a file and FFmpeg's output with -f md5?
>
> You do not know? How so?

I have no idea.

Carl Eugen


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