On 29/05/2025 13.38, Carl Zwanzig wrote:
On 5/29/2025 9:40 AM, Mark Filipak wrote:
I can't "make patches". I'm not a 'C' programmer.
HAVE YOU EVEN LOOKED AT THE DOC SOURCE???????
How can I?
Much of the doc is in textinfo format, not in c. but since apparently you haven't looked, you might
not know that. Try reading
https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/refs/heads/master:/doc/filters.texi
"
117 A filtergraph has a textual representation, which is recognized by the
118 @option{-filter}/@option{-vf}/@option{-af} and
119 @option{-filter_complex} options in @command{ffmpeg} and
120 @option{-vf}/@option{-af} in @command{ffplay}, and by the
121 @code{avfilter_graph_parse_ptr()} function defined in
122 @file{libavfilter/avfilter.h}.
"
That is not English. That is not for users like me.
And even without knowing c but having some/any programming experience, this should be reasonably
comprehensible--
static const AVOption chorus_options[] = {
{ "in_gain", "set input gain", OFFSET(in_gain), AV_OPT_TYPE_FLOAT,
{.dbl=.4}, 0, 1, A },
{ "out_gain", "set output gain", OFFSET(out_gain), AV_OPT_TYPE_FLOAT,
{.dbl=.4}, 0, 1, A },
{ "delays", "set delays", OFFSET(delays_str), AV_OPT_TYPE_STRING,
{.str=NULL}, 0, 0, A },
{ "decays", "set decays", OFFSET(decays_str), AV_OPT_TYPE_STRING,
{.str=NULL}, 0, 0, A },
{ "speeds", "set speeds", OFFSET(speeds_str), AV_OPT_TYPE_STRING,
{.str=NULL}, 0, 0, A },
{ "depths", "set depths", OFFSET(depths_str), AV_OPT_TYPE_STRING,
{.str=NULL}, 0, 0, A },
{ NULL }
};
(https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/refs/heads/master:/libavfilter/af_chorus.c)
Thank you for taking the time to ask. Answer: I have not a clue what that means. It's jibberish to
me. I have mostly written assembly language. Oh, I know the table above is called a "C struct" (I
think), but that's all I know. It's like trying to 'read' JSON that's been obfuscated. It's not English.
Sure, might have to find how AVOption is defined, but it's pretty clear what "in_gain" does and a
rough guess suggests the default value is .4 .
If you say so.
Make an effort. (And really, c isn't that difficult to read.)
So they -- 'C' codesmiths -- say.
There's an ocean between us, and I'm not a navigator.
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