[vlc-devel] [PATCH] Detecting language of subtitles using its filename

Luiz Vitor Martinez Cardoso grabber at gmail.com
Sat Feb 2 19:17:15 CET 2013


What about using de NAME_FILE.LANG.extension as a hint and start checking
the legend file content?

You could relatively easily use some n-gram (
http://en.wikipedia.org/wiki/N-gram) technique to detect the language.

Best regards,

On Sat, Feb 2, 2013 at 4:13 PM, Eduardo Piombino <drakorg at gmail.com> wrote:

> Support for this "extension" should not break anything. Regular subs
> without the prefix should be accepted as always, but subtitles that meet
> this naming convention, if any, should be considered as alternative subs
> for the same movie. That's all.
> Regarding where it is accepted, as I stated, oppo player, and philips are
> aware of this convention (at least) and will decode the 2 letter prefix
> into the language (English for "en", Italian for "it", French for "fr",
> etc). I have seen some confussion for Spanish for example, where I've seen
> the "es", "esp", "sp" and "spa" prefixes.
> However, if you stick to some naming convention for automatic decoding,
> lets say "es", and leave the default behaviour of leaving the prefix intact
> (without decoding) if it doesnt match any of the names in the convention,
> then the worst that can happen is that it will show up as "ESP", and you
> will still know what it is. It's a huge step forward, with no backdraws.
> You can even use this default behaviour to give the track any custom name
> like Walter also suggested.
> If it can be extended or be improved further, no doubt of it, but it is a
> huge improvement over current state, where Track numbers don't do the job
> for describing its contents.
> Here are two more threads on this subject, plus the one that Walter has
> already posted.
> http://superuser.com/questions/346599/what-is-naming-convention-for-subtitle-files
> https://groups.google.com/forum/#!msg/mx-videoplayer/TjK8CZWtUhQ/WZDbNE18ogAJ
> Best regards,
> Eduardo
> On Sat, Feb 2, 2013 at 1:46 PM, Edward Wang <edward.c.wang at compdigitec.com
> > wrote:
>> On 13-02-02 11:44 AM, Eduardo Piombino <drakorg at gmail.com> wrote:
>>> Hi, I dont think its in any RFC but at least its standarized.
>> Where? Do other media players support it?
>> Also, does this patch break support for regular subtitles (without the
>> language extension)?
>> Regards,
>>         Edward Wang
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Luiz Vitor Martinez Cardoso
Celular: (11) 7351-7097 | Skype: grabberbr
engineer student at maua.br
<http://maua.br>intern marketing engineer at geindustrial.com.br
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