Function of_add_programs

fftools/ffmpeg_mux_init.c:2732–2792

}

static int of_add_programs(Muxer *mux, const OptionsContext *o)
{
    AVFormatContext *oc = mux->fc;
    /* process manually set programs */
    for (int i = 0; i < o->program.nb_opt; i++) {
        AVDictionary *dict = NULL;
        const AVDictionaryEntry *e;
        AVProgram *program;
        int ret, progid = i + 1;

        ret = av_dict_parse_string(&dict, o->program.opt[i].u.str, "=", ":",
                                   AV_DICT_MULTIKEY);
        if (ret < 0) {
            av_log(mux, AV_LOG_ERROR, "Error parsing program specification %s\n",
                   o->program.opt[i].u.str);
            return ret;
        }

        e = av_dict_get(dict, "program_num", NULL, 0);
        if (e) {
            progid = strtol(e->value, NULL, 0);
            av_dict_set(&dict, e->key, NULL, 0);
        }

        program = av_new_program(oc, progid);
        if (!program) {
            ret = AVERROR(ENOMEM);
            goto fail;
        }

        e = av_dict_get(dict, "title", NULL, 0);
        if (e) {
            av_dict_set(&program->metadata, e->key, e->value, 0);
            av_dict_set(&dict, e->key, NULL, 0);
        }

        e = NULL;
        while (e = av_dict_get(dict, "st", e, 0)) {
            int st_num = strtol(e->value, NULL, 0);
            av_program_add_stream_index(oc, progid, st_num);
        }

        // make sure that nothing but "st" entries are left in the dict
        e = NULL;
        while (e = av_dict_iterate(dict, e)) {
            if (!strcmp(e->key, "st"))
                continue;

            av_log(mux, AV_LOG_FATAL, "Unknown program key %s.\n", e->key);
            ret = AVERROR(EINVAL);
            goto fail;
        }

fail:
        av_dict_free(&dict);
        if (ret < 0)
            return ret;
    }