Function check_opt_bitexact

fftools/ffmpeg_mux_init.c:53–67

#define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"

static int check_opt_bitexact(void *ctx, const AVDictionary *opts,
                              const char *opt_name, int flag)
{
    const AVDictionaryEntry *e = av_dict_get(opts, opt_name, NULL, 0);

    if (e) {
        const AVOption *o = av_opt_find(ctx, opt_name, NULL, 0, 0);
        int val = 0;
        if (!o)
            return 0;
        av_opt_eval_flags(ctx, o, e->value, &val);
        return !!(val & flag);
    }
    return 0;
}

static int choose_encoder(const OptionsContext *o, AVFormatContext *s,
                          MuxStream *ms, const AVCodec **enc)