On Sat, May 23, 2020 at 04:52:47PM +0200, Nicolas George wrote:
> Limin Wang (12020-05-23):
> > > In this case, transforming the string into an AVDictionary, passing it
> > > around and warning if there are remaining options should be the simplest
> > > choice.
> >
> > So I should to use av_find_info_tag to parse the options string? any
> > sample code
> > in the existing code for refering?
>
> What?!? Definitely not. Have you read its doc? It is made for URLs, we
> do not have any URL here.
I'm not clear about the char * option usage yet, below is my draft code, am I
understand for you correctly?
+ int ret;
+ AVDictionary *dict = NULL;
+ AVDictionaryEntry *format = NULL;
+ ret = av_dict_parse_string(&dict, options, "=", ":", 0);
+ if (ret < 0) {
+ av_dict_free(&dict);
+ return NULL;
+ }
+ format = av_dict_get(dict, "fmt", NULL, 0);
+
+ if (format && !strcmp(format->value, "DOT")) {
+ av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
+ avfilter_graph2dot_to_buf(&buf, graph);
+ av_bprint_finalize(&buf, &dump);
+ } else {
>
> Regards,
>
> --
> Nicolas George
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--
Thanks,
Limin Wang
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