Function dec_create

fftools/ffmpeg_dec.c:1692–1764

}

int dec_create(const OptionsContext *o, const char *arg, Scheduler *sch)
{
    DecoderPriv *dp;

    OutputFile      *of;
    OutputStream    *ost;
    int of_index, ost_index;
    char *p;

    unsigned enc_idx;
    int ret;

    ret = dec_alloc(&dp, sch, 0);
    if (ret < 0)
        return ret;

    dp->index = nb_decoders;

    ret = GROW_ARRAY(decoders, nb_decoders);
    if (ret < 0) {
        dec_free((Decoder **)&dp);
        return ret;
    }

    decoders[nb_decoders - 1] = (Decoder *)dp;

    of_index = strtol(arg, &p, 0);
    if (of_index < 0 || of_index >= nb_output_files) {
        av_log(dp, AV_LOG_ERROR, "Invalid output file index '%d' in %s\n", of_index, arg);
        return AVERROR(EINVAL);
    }
    of = output_files[of_index];

    ost_index = strtol(p + 1, NULL, 0);
    if (ost_index < 0 || ost_index >= of->nb_streams) {
        av_log(dp, AV_LOG_ERROR, "Invalid output stream index '%d' in %s\n", ost_index, arg);
        return AVERROR(EINVAL);
    }
    ost = of->streams[ost_index];

    if (!ost->enc) {
        av_log(dp, AV_LOG_ERROR, "Output stream %s has no encoder\n", arg);
        return AVERROR(EINVAL);
    }

    dp->dec.type = ost->type;

    ret = enc_loopback(ost->enc);
    if (ret < 0)
        return ret;
    enc_idx = ret;

    ret = sch_connect(sch, SCH_ENC(enc_idx), SCH_DEC_IN(dp->sch_idx));
    if (ret < 0)
        return ret;

    ret = av_dict_copy(&dp->standalone_init.opts, o->g->codec_opts, 0);
    if (ret < 0)