[FFmpeg-user] Equivalent of "-f rawvideo" but for audio?
Paul B Mahol
onemda at gmail.com
Fri Jun 28 17:08:33 EEST 2019
On 6/28/19, Moritz Barsnick <barsnick at gmx.net> wrote:
> On Thu, Jun 27, 2019 at 23:36:12 +0100, Kieran O Leary wrote:
>> On Thu, 27 Jun 2019, 23:32 Moritz Barsnick, <barsnick at gmx.net> wrote:
>> > $ ffmpeg -i input -map 0:a -c:a copy -f hash -
>> > or
>> > $ ffmpeg -i input -map 0:a -c:a copy -hash md5 -f hash -
>> > if you prefer MD5
>> Out of curiosity,what is the difference between this and -f md5 -
> Nothing. (I did mention the word "alias" in my text. ;-))
> As the docs say:
> 21.18 md5
> MD5 testing format.
> This is a variant of the hash muxer. Unlike that muxer, it defaults to
> using the MD5 hash function.
> I was one of those who converted the "md5" muxer to a more generic
> "hash" muxer with various hashing algorithms, defaulting to a more
> modern algorithm (SHA256). The "md5" muxer was retained as an alias for
> backward compatibility.
> (Analogously for "framehash" and "framemd5".)
People just follow old bad habits, its hard to change them.
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