[FFmpeg-devel] On software using non-public symbols

[Alex Converse]

On Sun, Jan 23, 2011 at 12:41 AM, Stefano Sabatini
<stefano.sabatini-lala at poste.it> wrote:
> On date Sunday 2011-01-23 06:46:54 +0100, Diego Elio Petten? encoded:
>> Hi all,
>>
>> I was asked last night if I could look into which software is currently
>> using non-public symbols; I've since added an elfgrep script to my
>> ruby-elf[1] and here is its result, as applied over the Gentoo tinderbox
>> instance I maintain (which lists 12909 packages compiled and installed).
>>
>> The attachment reports the details for which file uses which symbol,
>> while the relationship with (Gentoo) packages is as follows:
> [...]
>> /usr/bin/ffprobe U dump_format at LIBAVFORMAT_52
>> /usr/bin/ffprobe U parse_date at LIBAVFORMAT_52
>> /usr/bin/ffmpeg U url_fopen at LIBAVFORMAT_52
>> /usr/bin/ffmpeg U dump_format at LIBAVFORMAT_52
>> /usr/bin/ffmpeg U url_fsize at LIBAVFORMAT_52
>> /usr/bin/ffmpeg U parse_date at LIBAVFORMAT_52
>> /usr/bin/ffmpeg U url_exist at LIBAVFORMAT_52
>> /usr/bin/ffmpeg U url_set_interrupt_cb at LIBAVFORMAT_52
>> /usr/bin/ffmpeg U url_fclose at LIBAVFORMAT_52
>> /usr/bin/ffmpeg U url_ftell at LIBAVFORMAT_52
>> /usr/bin/avidemux2_cli U url_fclose at LIBAVFORMAT_52
>> /usr/bin/avidemux2_cli U dump_format at LIBAVFORMAT_52
>> /usr/bin/avidemux2_cli U url_fopen at LIBAVFORMAT_52
> [....]
>
> Amongst the many, parse_date(), dump_format(), url_*() are *public*
> symbols defined in the public headers, although they're not properly
> av_ prefixed.
> --

Then they should be renamed for the next bump.