<sewn>
for ffmpeg to ignore any and all 'formatters' in the filename like image sequence patterns
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<sewn>
or stuff like %22
<JEEB>
I think in general that is ignored on the file protocol level, I just know that there are some specific writer modules which then attempt to interpret the file name like img2
<JEEB>
so file:blah%2.ts should actually lead to a file called blah%2.ts
<sewn>
ah ic ty
<JEEB>
but yea, be careful since some writer modules will indeed parse the path you're passing it
<JEEB>
see `ffmpeg -h muxer=image2` for example
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<LimeOn>
Hello. I was wondering if its possible to extract audio files from CDs with ffmpeg
<LimeOn>
i have seen there is a way to extract videos from DVDs, but its not clear to me if theres an equivalent method for music cds
<LimeOn>
Ideally i would like to copy the content of the CD, and then transfer those files to another device, and the process them to extract the audios
<LimeOn>
In case it is not possible with ffmpeg, i would appreciate some guidance on the best way to 'transport' those codified files from the CD to the other device, so another program could work from those files, and not from the cd
<LimeOn>
(the cd reader is in another device)
<kepstin>
for music cds, you probably want to use cdparanoia, that'll give you wav files that you can do whatever you want with later.
<kepstin>
extracting audio from cds is kind of a specialized thing, there's dedicated tools/libraries for it.
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<LimeOn>
Yeah, i have seen there are a lot of programs for that, but i have not seen how to do it to the files inside the cd, when i do not have a cd reader. I guess i will have to wait to see what is inside the cd, and then search based into that. Thanks kepstin
<kepstin>
audio cds don't have "files"
<kepstin>
they're a completely different format, which needs dedicated tools to be able to read correctly and accurately.
<LimeOn>
but they have to have files, even if they are unreadable
<LimeOn>
i mean, something inside
<kepstin>
they use a different format from data cds, and contain a continous stream of pcm audio with some metadata information about where tracks start/stop.
<kepstin>
there's no files, you can't mount them. you need to use a program which sends special commands to the cd drive in order to extract the audio data.
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<LimeOn>
oh
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<LimeOn>
i will try to use vlc then, it seems to be able to handle this
<LimeOn>
since its not my pc, i dont wanna install much things in there
<kepstin>
vlc probably used libcdio or similar for it, probably fine.
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<BtbN>
Windows Media Player is fairly good at it as well
<BtbN>
Just make sure to change the codec from wma to high-bitrate mp3 or aac or whatever it has on offer these days
<LimeOn>
Nice info BtbN
<LimeOn>
i guess mp3 would be enough, i will do it just to learn and see what i get
<BtbN>
The encoders it uses are poor from what I remember
<LimeOn>
so i will get big size files, i guess
<BtbN>
you want to throw absolutely excessive bitrate at it
<LimeOn>
i can fix that later with ffmpeg i think
<BtbN>
Not sure if you can make it do lossless, iirc you can't.
<BtbN>
But ultra high bitrate mp3 and then re-encode with a decent encoder is an option
<LimeOn>
something like flac would be loseless,right?
<LimeOn>
i dont even think the content will be high bitrate, this is a very old music cd ^^
<LimeOn>
maybe its just 128kb/s
<BtbN>
It's an audio CD
<BtbN>
Unless it's a data CD with mp3 files on it, there isn't really a bitrate, let alone a codec
<BtbN>
it's raw pcm. As lossless and big as it gets
<BtbN>
technically it has a bitrate, but not in the sense of a codec