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

Walter Cacau waltercacau at gmail.com
Wed Feb 27 17:49:31 CET 2013


Well, asking again for review / merge / comments.

Best Regards,

Walter

On Fri, Feb 15, 2013 at 5:52 PM, Walter Cacau <waltercacau at gmail.com> wrote:

> I am not sure what is next, because this is my first time sending a patch
> to VLC. Should we wait more comments? Should I ask somebody for review?
>
> Thanks
>
> On Thu, Feb 7, 2013 at 12:11 PM, Walter Cacau <waltercacau at gmail.com>wrote:
>
>> Hi Jean,
>>
>> I could not figure out a way to get the filename directly inside the
>> demux. At least I could not find a function on src/input/item.c for that.
>>
>> About the white space, it is really weird placed, probably an accident,
>> sorry about that :). Should I send another patch fixing it or should I wait
>> to see if there are other comments about the code?
>>
>> Best regards,
>>
>> Walter
>>
>> On Thu, Feb 7, 2013 at 11:18 AM, Jean-Baptiste Kempf <jb at videolan.org>wrote:
>>
>>> On 02 Feb, Walter Cacau wrote :
>>> > +    /* Detecting subtitle language using its filename */
>>> > +    {
>>> > +        input_thread_t * p_input = demux_GetParentInput(p_demux);
>>> > +        char * psz_video_url =
>>> input_item_GetURI(input_GetItem(p_input));
>>> > +        vlc_object_release(p_input);
>>> > +
>>> > +        if ( psz_video_url )
>>> > +        {
>>> > +            char * psz_language = get_language_from_filename(
>>> > +                p_demux->psz_location,
>>> > +                psz_video_url
>>> > +
>>> > +            );
>>> The new line is weirdly placed.
>>>
>>> Are you sure you cannot get the filename and not the URL?
>>>
>>>
>>> > +static char * get_language_from_filename( const char *
>>> psz_sub_location,
>>> > +                                          const char * psz_video_url )
>>> > +{
>>> > +    char * psz_ret = NULL;
>>> > +    char * psz_video_file = NULL;
>>> > +    char * psz_sub_file = NULL;
>>> > +    char * psz_tmp;
>>> > +    char * psz_sub_suffix;
>>> > +    char * ps_language_end;
>>> > +
>>> > +    psz_video_file = strrchr( psz_video_url, '/' );
>>> > +    if( !psz_video_file ) goto end;
>>> > +    psz_video_file++;
>>> > +    psz_video_file = decode_URI_duplicate(psz_video_file);
>>> > +    if( !psz_video_file ) goto end;
>>> > +
>>> > +    psz_sub_file = strrchr( psz_sub_location, '/' );
>>> > +    if( !psz_sub_file ) goto end;
>>> > +    psz_sub_file++;
>>> > +    psz_sub_file = decode_URI_duplicate(psz_sub_file);
>>> > +    if( !psz_video_file ) goto end;
>>> > +
>>> > +    /* Removing extension, but leaving the dot */
>>> > +    psz_tmp = strrchr( psz_video_file, '.' );
>>> > +    if( !psz_tmp ) goto end;
>>> > +    psz_tmp[1] = '\0';
>>> > +
>>> > +    /* Extracting sub file prefix */
>>> > +    if( strstr(psz_sub_file, psz_video_file) != psz_sub_file ) goto
>>> end;
>>> > +    psz_sub_suffix = psz_sub_file + strlen(psz_video_file);
>>> > +
>>> > +    ps_language_end = strrchr( psz_sub_suffix, '.' );
>>> > +    if( !ps_language_end ) goto end;
>>> > +    *ps_language_end = '\0';
>>> > +
>>> > +    psz_ret = strdup(psz_sub_suffix);
>>> > +
>>> > +end:
>>> > +    FREENULL(psz_video_file);
>>> > +    FREENULL(psz_sub_file);
>>> > +    return psz_ret;
>>> > +}
>>>
>>> Best regards,
>>>
>>> --
>>> Jean-Baptiste Kempf
>>> http://www.jbkempf.com/ - +33 672 704 734
>>> Sent from my Electronic Device
>>> _______________________________________________
>>> vlc-devel mailing list
>>> To unsubscribe or modify your subscription options:
>>> http://mailman.videolan.org/listinfo/vlc-devel
>>>
>>
>>
>>
>> --
>> Walter Carlos P. Cacau Filho
>> ITA T12 - Engenharia de Computação
>> waltercacau at gmail.com
>>
>
>
>
> --
> Walter Carlos P. Cacau Filho
> ITA T12 - Engenharia de Computação
> waltercacau at gmail.com
>



-- 
Walter Carlos P. Cacau Filho
ITA T12 - Engenharia de Computação
waltercacau at gmail.com
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