print_int("nb_streams", fmt_ctx->nb_streams);
print_int("nb_programs", fmt_ctx->nb_programs);
print_str("format_name", fmt_ctx->iformat->name);
print_int("nb_streams", fmt_ctx->nb_streams);
print_int("nb_programs", fmt_ctx->nb_programs);
print_str("format_name", fmt_ctx->iformat->name);