C++ (Cpp) process_unnamed_options Exemples

Exemple #1

Fichier : avfilter.c Projet : Rodeo314/tim-libav

int avfilter_init_str(AVFilterContext *filter, const char *args)
{
    AVDictionary *options = NULL;
    AVDictionaryEntry *e;
    int ret = 0;

    if (args && *args) {
        if (!filter->filter->priv_class) {
            av_log(filter, AV_LOG_ERROR, "This filter does not take any "
                   "options, but options were provided: %s.\n", args);
            return AVERROR(EINVAL);
        }

        if (strchr(args, '=')) {
            /* assume a list of key1=value1:key2=value2:... */
            ret = av_dict_parse_string(&options, args, "=", ":", 0);
            if (ret < 0)
                goto fail;
        } else {
            ret = process_unnamed_options(filter, &options, args);
            if (ret < 0)
                goto fail;
        }
    }

    ret = avfilter_init_dict(filter, &options);
    if (ret < 0)
        goto fail;

    if ((e = av_dict_get(options, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
        av_log(filter, AV_LOG_ERROR, "No such option: %s.\n", e->key);
        ret = AVERROR_OPTION_NOT_FOUND;
        goto fail;
    }

fail:
    av_dict_free(&options);

    return ret;
}

Exemple #2

Fichier : avfilter.c Projet : VFR-maniac/libav

int avfilter_init_str(AVFilterContext *filter, const char *args)
{
    AVDictionary *options = NULL;
    AVDictionaryEntry *e;
    int ret = 0;

    if (args && *args) {
        if (!filter->filter->priv_class) {
            av_log(filter, AV_LOG_ERROR, "This filter does not take any "
                   "options, but options were provided: %s.\n", args);
            return AVERROR(EINVAL);
        }

#if FF_API_OLD_FILTER_OPTS
        if (!strcmp(filter->filter->name, "scale") &&
            strchr(args, ':') && strchr(args, ':') < strchr(args, '=')) {
            /* old w:h:flags=<flags> syntax */
            char *copy = av_strdup(args);
            char *p;

            av_log(filter, AV_LOG_WARNING, "The <w>:<h>:flags=<flags> option "
                   "syntax is deprecated. Use either <w>:<h>:<flags> or "
                   "w=<w>:h=<h>:flags=<flags>.\n");

            if (!copy) {
                ret = AVERROR(ENOMEM);
                goto fail;
            }

            p = strrchr(copy, ':');
            if (p) {
                *p++ = 0;
                ret = av_dict_parse_string(&options, p, "=", ":", 0);
            }
            if (ret >= 0)
                ret = process_unnamed_options(filter, &options, copy);
            av_freep(&copy);

            if (ret < 0)
                goto fail;
        } else
#endif

        if (strchr(args, '=')) {
            /* assume a list of key1=value1:key2=value2:... */
            ret = av_dict_parse_string(&options, args, "=", ":", 0);
            if (ret < 0)
                goto fail;
#if FF_API_OLD_FILTER_OPTS
        } else if (!strcmp(filter->filter->name, "format")     ||
                   !strcmp(filter->filter->name, "noformat")   ||
                   !strcmp(filter->filter->name, "frei0r")     ||
                   !strcmp(filter->filter->name, "frei0r_src") ||
                   !strcmp(filter->filter->name, "ocv")) {
            /* a hack for compatibility with the old syntax
             * replace colons with |s */
            char *copy = av_strdup(args);
            char *p    = copy;
            int nb_leading = 0; // number of leading colons to skip

            if (!copy) {
                ret = AVERROR(ENOMEM);
                goto fail;
            }

            if (!strcmp(filter->filter->name, "frei0r") ||
                !strcmp(filter->filter->name, "ocv"))
                nb_leading = 1;
            else if (!strcmp(filter->filter->name, "frei0r_src"))
                nb_leading = 3;

            while (nb_leading--) {
                p = strchr(p, ':');
                if (!p) {
                    p = copy + strlen(copy);
                    break;
                }
                p++;
            }

            if (strchr(p, ':')) {
                av_log(filter, AV_LOG_WARNING, "This syntax is deprecated. Use "
                       "'|' to separate the list items.\n");
            }

            while ((p = strchr(p, ':')))
                *p++ = '|';

            ret = process_unnamed_options(filter, &options, copy);
            av_freep(&copy);

            if (ret < 0)
                goto fail;
#endif
        } else {
            ret = process_unnamed_options(filter, &options, args);
            if (ret < 0)
                goto fail;
        }
    }

    ret = avfilter_init_dict(filter, &options);
    if (ret < 0)
        goto fail;

    if ((e = av_dict_get(options, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
        av_log(filter, AV_LOG_ERROR, "No such option: %s.\n", e->key);
        ret = AVERROR_OPTION_NOT_FOUND;
        goto fail;
    }

fail:
    av_dict_free(&options);

    return ret;
}