- av_dict_set(&o->g->codec_opts, "b:v", "2040000", AV_DICT_DONT_OVERWRITE);
- av_dict_set(&o->g->codec_opts, "maxrate", "2516000", AV_DICT_DONT_OVERWRITE);
- av_dict_set(&o->g->codec_opts, "minrate", "0", AV_DICT_DONT_OVERWRITE); // 1145000;
- av_dict_set(&o->g->codec_opts, "bufsize", "1835008", AV_DICT_DONT_OVERWRITE); // 224*1024*8;
- av_dict_set(&o->g->codec_opts, "scan_offset", "1", AV_DICT_DONT_OVERWRITE);
+ opt_default(NULL, "b:v", "2040000");
+ opt_default(NULL, "maxrate", "2516000");
+ opt_default(NULL, "minrate", "0"); // 1145000;
+ opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
+ opt_default(NULL, "scan_offset", "1");